v3.25.4
Report of Directors Financial Review Risk Report - Mainland China commercial real estate (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 3,117,161 $ 2,923,319
Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (4,593) (4,618)
Wholesale | Commercial real estate loans and advances including loan commitments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 5,802 $ 7,259
Expected credit loss rate 17.60% 16.00%
Wholesale | Commercial real estate loans and advances including loan commitments | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ (1,018) $ (1,158)
Wholesale | Commercial real estate loans and advances including loan commitments | Allowance for ECL | Financial instruments not credit-impaired | – stage 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (4) (9)
Wholesale | Commercial real estate loans and advances including loan commitments | Allowance for ECL | Financial instruments not credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (116) (319)
Wholesale | Commercial real estate loans and advances including loan commitments | Allowance for ECL | Financial instruments credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (882) (824)
Wholesale | Commercial real estate loans and advances including loan commitments | Allowance for ECL | – POCI | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (16) (6)
Wholesale | Commercial real estate loans and advances including loan commitments | Strong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 2,175 2,044
Wholesale | Commercial real estate loans and advances including loan commitments | Strong | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (2) (4)
Wholesale | Commercial real estate loans and advances including loan commitments | Good    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 823 1,174
Wholesale | Commercial real estate loans and advances including loan commitments | Good | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (4) (3)
Wholesale | Commercial real estate loans and advances including loan commitments | Satisfactory    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 673 1,144
Wholesale | Commercial real estate loans and advances including loan commitments | Satisfactory | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (5) (13)
Wholesale | Commercial real estate loans and advances including loan commitments | Sub-standard    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 478 1,062
Wholesale | Commercial real estate loans and advances including loan commitments | Sub-standard | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (109) (308)
Wholesale | Commercial real estate loans and advances including loan commitments | Credit impaired    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 1,653 1,835
Wholesale | Commercial real estate loans and advances including loan commitments | Credit impaired | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (898) (830)
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 2,184 $ 3,241
Expected credit loss rate 37.00% 31.20%
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ (808) $ (1,010)
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Allowance for ECL | Financial instruments not credit-impaired | – stage 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Allowance for ECL | Financial instruments not credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (9) (261)
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Allowance for ECL | Financial instruments credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (783) (743)
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Allowance for ECL | – POCI | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (16) (6)
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Strong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 293 118
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Strong | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Good    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 240 578
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Good | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Satisfactory    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 154 196
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Satisfactory | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Sub-standard    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 87 777
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Sub-standard | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (9) (261)
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Credit impaired    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 1,410 1,572
Wholesale | Commercial real estate loans and advances including loan commitments | Hong Kong | Credit impaired | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (799) (749)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 3,488 $ 3,710
Expected credit loss rate 6.00% 3.50%
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ (209) $ (131)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Allowance for ECL | Financial instruments not credit-impaired | – stage 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (4) (9)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Allowance for ECL | Financial instruments not credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (106) (41)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Allowance for ECL | Financial instruments credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (99) (81)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Allowance for ECL | – POCI | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Strong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 1,818 1,817
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Strong | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (2) (4)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Good    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 583 595
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Good | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (4) (3)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Satisfactory    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 511 899
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Satisfactory | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (5) (13)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Sub-standard    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 334 136
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Sub-standard | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (99) (30)
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Credit impaired    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 242 263
Wholesale | Commercial real estate loans and advances including loan commitments | Mainland China | Credit impaired | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (99) (81)
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 130 $ 308
Expected credit loss rate 0.80% 5.50%
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ (1) $ (17)
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Allowance for ECL | Financial instruments not credit-impaired | – stage 1    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Allowance for ECL | Financial instruments not credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (1) (17)
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Allowance for ECL | Financial instruments credit-impaired | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Allowance for ECL | – POCI | Lifetime expected credit losses    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Strong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 64 109
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Strong | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Good    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 1
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Good | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Satisfactory    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 8 49
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Satisfactory | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Sub-standard    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 57 149
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Sub-standard | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets (1) (17)
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Credit impaired    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 1 0
Wholesale | Commercial real estate loans and advances including loan commitments | Rest of the Group | Credit impaired | Allowance for ECL    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 0 0
Wholesale | Loans and advances to customers | Commercial real estate loans and advances including loan commitments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 5,671 7,158
Wholesale | Loans and advances to customers | Commercial real estate loans and advances including loan commitments | Hong Kong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 2,079 3,161
Wholesale | Loans and advances to customers | Commercial real estate loans and advances including loan commitments | Mainland China    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 3,474 3,694
Wholesale | Loans and advances to customers | Commercial real estate loans and advances including loan commitments | Rest of the Group    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 118 303
Wholesale | Guarantees issued and others | Commercial real estate loans and advances including loan commitments    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 131 101
Wholesale | Guarantees issued and others | Commercial real estate loans and advances including loan commitments | Hong Kong    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 105 80
Wholesale | Guarantees issued and others | Commercial real estate loans and advances including loan commitments | Mainland China    
Disclosure of detailed information about financial instruments [line items]    
Financial assets 14 16
Wholesale | Guarantees issued and others | Commercial real estate loans and advances including loan commitments | Rest of the Group    
Disclosure of detailed information about financial instruments [line items]    
Financial assets $ 12 $ 5