v3.25.4
Report of Directors Financial Review Risk Report - Loans and advances to customers including loan commitments by level of collateral for key countries/territories (by stage) (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,694,960 $ 2,497,173
Personal lending | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 4,902 11,470
Personal lending | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 37 125
Personal lending | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 4,694 11,142
Personal lending | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 404,124 $ 369,215
Expected credit loss rate 0.10% 0.10%
Personal lending | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 204,287 $ 182,585
Expected credit loss rate 0.10% 0.10%
Personal lending | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 104,469 $ 96,645
Expected credit loss rate 0.00% 0.00%
Personal lending | Partially collateralised | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 5,159 $ 12,273
Expected credit loss rate 0.90% 0.40%
Personal lending | Partially collateralised | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 68 $ 166
Expected credit loss rate 3.80% 0.90%
Personal lending | Partially collateralised | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 4,886 $ 11,861
Expected credit loss rate 0.00% 0.00%
Personal lending | – less than 50% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 169,586 $ 160,645
Expected credit loss rate 0.10% 0.10%
Personal lending | – less than 50% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 85,540 $ 79,887
Expected credit loss rate 0.10% 0.10%
Personal lending | – less than 50% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 41,363 $ 39,345
Expected credit loss rate 0.00% 0.00%
Personal lending | – 51% to 70% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 131,439 $ 124,168
Expected credit loss rate 0.10% 0.10%
Personal lending | – 51% to 70% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 66,042 $ 61,036
Expected credit loss rate 0.10% 0.10%
Personal lending | – 51% to 70% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 31,401 $ 30,346
Expected credit loss rate 0.00% 0.00%
Personal lending | – 71% to 80% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 48,367 $ 42,656
Expected credit loss rate 0.10% 0.10%
Personal lending | – 71% to 80% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 26,548 $ 23,039
Expected credit loss rate 0.10% 0.10%
Personal lending | – 71% to 80% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 6,798 $ 6,841
Expected credit loss rate 0.00% 0.00%
Personal lending | – 81% to 90% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 38,553 $ 26,909
Expected credit loss rate 0.10% 0.10%
Personal lending | – 81% to 90% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 22,812 $ 16,927
Expected credit loss rate 0.10% 0.10%
Personal lending | – 81% to 90% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 13,050 $ 7,653
Expected credit loss rate 0.00% 0.00%
Personal lending | – 91% to 100% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 16,179 $ 14,837
Expected credit loss rate 0.10% 0.10%
Personal lending | – 91% to 100% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 3,345 $ 1,696
Expected credit loss rate 0.10% 0.10%
Personal lending | – 91% to 100% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 11,857 $ 12,460
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value $ 4,707 $ 11,274
Personal lending | Financial instruments not credit-impaired | – stage 1 | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 29 109
Personal lending | Financial instruments not credit-impaired | – stage 1 | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 4,593 11,034
Personal lending | Financial instruments not credit-impaired | – stage 1 | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 383,401 $ 332,641
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 190,214 $ 151,264
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 102,801 $ 95,751
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | Partially collateralised | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 4,924 $ 12,031
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | Partially collateralised | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 58 $ 146
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | Partially collateralised | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 4,781 $ 11,744
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – less than 50% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 159,089 $ 141,331
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – less than 50% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 77,859 $ 62,753
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – less than 50% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 40,518 $ 38,894
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 51% to 70% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 125,204 $ 111,963
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 51% to 70% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 61,605 $ 50,374
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 51% to 70% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 31,015 $ 30,088
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 71% to 80% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 46,175 $ 39,374
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 71% to 80% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 25,237 $ 20,552
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 71% to 80% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 6,698 $ 6,783
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 81% to 90% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 37,415 $ 25,514
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 81% to 90% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 22,218 $ 15,965
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 81% to 90% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 12,906 $ 7,602
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 91% to 100% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 15,518 $ 14,459
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 91% to 100% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 3,295 $ 1,620
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | – stage 1 | – 91% to 100% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 11,664 $ 12,384
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value $ 129 $ 126
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 1 12
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 85 96
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 18,150 $ 34,203
Expected credit loss rate 0.60% 0.40%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 13,257 $ 30,574
Expected credit loss rate 0.30% 0.20%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,503 $ 756
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Partially collateralised | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 138 $ 139
Expected credit loss rate 2.20% 3.20%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Partially collateralised | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2 $ 15
Expected credit loss rate 0.60% 1.00%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | Partially collateralised | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 87 $ 103
Expected credit loss rate 0.20% 0.20%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – less than 50% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 9,161 $ 18,076
Expected credit loss rate 0.40% 0.20%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – less than 50% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 7,260 $ 16,689
Expected credit loss rate 0.10% 0.10%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – less than 50% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 762 $ 372
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 51% to 70% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 5,484 $ 11,507
Expected credit loss rate 0.60% 0.40%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 51% to 70% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 4,183 $ 10,456
Expected credit loss rate 0.30% 0.20%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 51% to 70% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 345 $ 227
Expected credit loss rate 0.00% 0.00%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 71% to 80% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,934 $ 3,040
Expected credit loss rate 0.70% 0.70%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 71% to 80% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,226 $ 2,423
Expected credit loss rate 0.50% 0.40%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 71% to 80% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 83 $ 47
Expected credit loss rate 0.10% 0.00%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 81% to 90% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 971 $ 1,264
Expected credit loss rate 0.90% 0.90%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 81% to 90% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 548 $ 939
Expected credit loss rate 0.70% 0.60%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 81% to 90% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 132 $ 42
Expected credit loss rate 0.20% 0.20%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 91% to 100% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 600 $ 316
Expected credit loss rate 1.50% 1.80%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 91% to 100% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 40 $ 67
Expected credit loss rate 1.00% 0.70%
Personal lending | Financial instruments not credit-impaired | Lifetime expected credit losses | – 91% to 100% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 181 $ 68
Expected credit loss rate 0.20% 0.10%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value $ 66 $ 70
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 7 4
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Collateral value 16 12
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,573 $ 2,371
Expected credit loss rate 10.50% 10.00%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 816 $ 747
Expected credit loss rate 9.70% 8.50%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 165 $ 138
Expected credit loss rate 0.70% 1.30%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Partially collateralised | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 97 $ 103
Expected credit loss rate 44.30% 46.20%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Partially collateralised | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 8 $ 5
Expected credit loss rate 32.50% 27.70%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | Partially collateralised | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 18 $ 14
Expected credit loss rate 8.30% 19.10%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – less than 50% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,336 $ 1,238
Expected credit loss rate 8.30% 7.60%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – less than 50% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 421 $ 445
Expected credit loss rate 8.20% 6.90%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – less than 50% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 83 $ 79
Expected credit loss rate 0.20% 0.40%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 51% to 70% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 751 $ 698
Expected credit loss rate 11.20% 11.20%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 51% to 70% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 254 $ 206
Expected credit loss rate 8.70% 9.70%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 51% to 70% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 41 $ 31
Expected credit loss rate 0.50% 0.40%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 71% to 80% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 258 $ 242
Expected credit loss rate 13.80% 13.10%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 71% to 80% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 85 $ 64
Expected credit loss rate 14.00% 12.10%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 71% to 80% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 17 $ 11
Expected credit loss rate 1.80% 5.10%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 81% to 90% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 167 $ 131
Expected credit loss rate 15.90% 15.00%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 81% to 90% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 46 $ 23
Expected credit loss rate 16.10% 13.00%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 81% to 90% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 12 $ 9
Expected credit loss rate 0.80% 1.10%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 91% to 100% | Fully collateralised by LTV ratio | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 61 $ 62
Expected credit loss rate 20.20% 22.40%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 91% to 100% | Fully collateralised by LTV ratio | UK | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 10 $ 9
Expected credit loss rate 27.00% 16.70%
Personal lending | Financial instruments credit-impaired | Lifetime expected credit losses | – 91% to 100% | Fully collateralised by LTV ratio | Hong Kong | Loans And Advances To Customers    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 12 $ 8
Expected credit loss rate 2.50% 8.80%
Wholesale | Commercial real estate loans and advances including loan commitments    
Disclosure of financial assets [line items]    
Expected credit loss rate 17.60% 16.00%
Wholesale | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value $ 3,370 $ 2,311
Wholesale | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value $ 1,562 $ 741
Wholesale | Hong Kong | Commercial real estate loans and advances including loan commitments    
Disclosure of financial assets [line items]    
Expected credit loss rate 37.00% 31.20%
Wholesale | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value $ 897 $ 560
Wholesale | Fully collateralised by LTV ratio | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 50,402 $ 54,253
Expected credit loss rate 2.40% 1.20%
Wholesale | Fully collateralised by LTV ratio | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 14,441 $ 12,638
Expected credit loss rate 1.00% 0.60%
Wholesale | Fully collateralised by LTV ratio | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 24,024 $ 27,287
Expected credit loss rate 2.90% 1.20%
Wholesale | Partially collateralised | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 5,158 $ 3,696
Expected credit loss rate 8.70% 5.80%
Wholesale | Partially collateralised | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,354 $ 1,233
Expected credit loss rate 1.90% 5.30%
Wholesale | Partially collateralised | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,349 $ 827
Expected credit loss rate 29.00% 12.90%
Wholesale | – less than 50% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 26,673 $ 28,089
Expected credit loss rate 1.70% 0.90%
Wholesale | – less than 50% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 5,072 $ 3,824
Expected credit loss rate 0.60% 0.80%
Wholesale | – less than 50% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 15,997 $ 18,626
Expected credit loss rate 1.80% 0.70%
Wholesale | – 91% to 100% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,834 $ 3,643
Expected credit loss rate 4.60% 1.80%
Wholesale | – 91% to 100% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 548 $ 921
Expected credit loss rate 0.40% 0.30%
Wholesale | – 91% to 100% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 842 $ 785
Expected credit loss rate 13.40% 0.60%
Wholesale | Financial instruments not credit-impaired | – stage 1 | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value $ 2,317 $ 1,255
Wholesale | Financial instruments not credit-impaired | – stage 1 | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value 1,381 296
Wholesale | Financial instruments not credit-impaired | – stage 1 | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value 149 119
Wholesale | Financial instruments not credit-impaired | – stage 1 | Fully collateralised by LTV ratio | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 26,814 $ 37,090
Expected credit loss rate 0.10% 0.10%
Wholesale | Financial instruments not credit-impaired | – stage 1 | Fully collateralised by LTV ratio | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 12,426 $ 9,139
Expected credit loss rate 0.20% 0.20%
Wholesale | Financial instruments not credit-impaired | – stage 1 | Fully collateralised by LTV ratio | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 5,588 $ 17,115
Expected credit loss rate 0.10% 0.10%
Wholesale | Financial instruments not credit-impaired | – stage 1 | Partially collateralised | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 3,635 $ 2,119
Expected credit loss rate 0.10% 0.20%
Wholesale | Financial instruments not credit-impaired | – stage 1 | Partially collateralised | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,111 $ 503
Expected credit loss rate 0.10% 0.20%
Wholesale | Financial instruments not credit-impaired | – stage 1 | Partially collateralised | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 198 $ 185
Expected credit loss rate 0.00% 0.00%
Wholesale | Financial instruments not credit-impaired | – stage 1 | – less than 50% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 13,415 $ 20,522
Expected credit loss rate 0.10% 0.10%
Wholesale | Financial instruments not credit-impaired | – stage 1 | – less than 50% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 4,606 $ 2,903
Expected credit loss rate 0.20% 0.20%
Wholesale | Financial instruments not credit-impaired | – stage 1 | – less than 50% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 4,008 $ 12,935
Expected credit loss rate 0.10% 0.10%
Wholesale | Financial instruments not credit-impaired | – stage 1 | – 91% to 100% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,999 $ 2,622
Expected credit loss rate 0.10% 0.20%
Wholesale | Financial instruments not credit-impaired | – stage 1 | – 91% to 100% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 537 $ 861
Expected credit loss rate 0.20% 0.10%
Wholesale | Financial instruments not credit-impaired | – stage 1 | – 91% to 100% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 354 $ 310
Expected credit loss rate 0.00% 0.00%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value $ 240 $ 457
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value 109 350
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value 11 41
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 16,633 $ 11,909
Expected credit loss rate 1.70% 1.70%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,661 $ 3,194
Expected credit loss rate 2.60% 1.10%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 12,969 $ 6,045
Expected credit loss rate 0.80% 1.40%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Partially collateralised | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 350 $ 698
Expected credit loss rate 3.10% 2.80%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Partially collateralised | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 115 $ 565
Expected credit loss rate 0.90% 2.90%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | Partially collateralised | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 110 $ 62
Expected credit loss rate 0.30% 1.90%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | – less than 50% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 10,682 $ 5,154
Expected credit loss rate 1.40% 1.70%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | – less than 50% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 430 $ 761
Expected credit loss rate 1.40% 1.50%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | – less than 50% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 9,705 $ 3,589
Expected credit loss rate 0.90% 1.30%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | – 91% to 100% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 266 $ 638
Expected credit loss rate 2.30% 2.30%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | – 91% to 100% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 9 $ 8
Expected credit loss rate 5.10% 7.70%
Wholesale | Financial instruments not credit-impaired | Lifetime expected credit losses | – 91% to 100% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 43 $ 347
Expected credit loss rate 2.30% 0.50%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value $ 780 $ 570
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value 42 69
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Collateral value 734 397
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 6,942 $ 5,254
Expected credit loss rate 13.30% 7.80%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 354 $ 305
Expected credit loss rate 21.80% 8.20%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Fully collateralised by LTV ratio | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 5,467 $ 4,127
Expected credit loss rate 10.60% 5.80%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Partially collateralised | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,093 $ 815
Expected credit loss rate 35.40% 19.70%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Partially collateralised | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 67 $ 119
Expected credit loss rate 17.90% 21.10%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | Partially collateralised | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 1,022 $ 562
Expected credit loss rate 36.70% 17.60%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | – less than 50% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,563 $ 2,413
Expected credit loss rate 11.00% 5.70%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | – less than 50% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 36 $ 160
Expected credit loss rate 38.90% 8.00%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | – less than 50% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2,284 $ 2,102
Expected credit loss rate 8.20% 3.80%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | – 91% to 100% | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 569 $ 383
Expected credit loss rate 21.60% 12.30%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | – 91% to 100% | UK | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 2 $ 52
Expected credit loss rate 61.20% 2.70%
Wholesale | Financial instruments credit-impaired | Lifetime expected credit losses | – 91% to 100% | Hong Kong | Loans and advances to customers and banks | Commercial real estate loans and advances including loan commitments | IFRS 9    
Disclosure of financial assets [line items]    
Financial assets and off-balance sheet loan commitments $ 445 $ 128
Expected credit loss rate 25.20% 2.40%