v3.25.4
Segmental analysis - Constant currency profit before tax and balance sheet data (Details) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge [1]     $ 68,274 $ 65,854 $ 66,058
Interest income/(expense)     34,794 32,733 35,796
Change in expected credit losses and other credit impairment charges     (3,850) (3,414) (3,447)
Net operating income     64,424 62,440 62,611
Total operating expenses     (36,428) (33,043) (32,070)
Operating profit     27,996 29,397 30,541
Share of profit in associates and joint ventures less impairment     2,911 2,912 2,807
Profit before tax     29,907 32,309 30,348
Loans and advances to customers (net)     988,399 930,658 938,535
Interests in associates and joint ventures     29,577 28,909 27,344
Total external assets     3,233,034 3,017,048 3,038,677
Customer accounts     1,786,828 1,654,955 1,611,647
Insurance finance expense     (11,197) (5,978) (7,809)
Reclassification adjustments of other reserves losses of net investments in foreign operations, before tax     (1,104) 0 0
Bank Of Communications Co., Limited          
Disclosure of operating segments [line items]          
Interest income/(expense) $ 23,886 $ 23,180      
Change in expected credit losses and other credit impairment charges (7,056) (7,410)      
Share of profit in associates and joint ventures less impairment     2,132 2,241 2,250
Loans and advances to customers (net) 1,265,800 1,128,603      
Total external assets 2,216,915 1,999,680      
Customer accounts 1,324,734 1,195,590      
Impairment loss recognised in profit or loss $ 4,139 $ 2,917 1,000 0 3,000
Reclassification adjustments of other reserves losses of net investments in foreign operations, before tax     1,100    
Operating segments excluding intersegment elimination          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     68,274 66,009 65,040
Interest income/(expense)     34,794 32,455 34,212
Operating segments excluding intersegment elimination | Hong Kong          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     10,157 9,704 10,093
Interest income/(expense)     12,082 11,997 12,108
Operating segments excluding intersegment elimination | UK          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     13,856 13,060 13,749
Interest income/(expense)     11,096 10,355 9,903
Operating segments excluding intersegment elimination | CIB          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     39,098 39,012 36,111
Interest income/(expense)     14,532 14,519 13,399
Operating segments excluding intersegment elimination | International Wealth and Premier Banking          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     12,458 11,175 10,112
Interest income/(expense)     7,397 8,081 7,753
Operating segments excluding intersegment elimination | Corporate Center          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     (7,295) (6,942) (5,025)
Interest income/(expense)     (10,313) (12,497) (8,951)
Inter-segment          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     0 0 0
Inter-segment | Hong Kong          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     5,721 5,343 4,439
Inter-segment | UK          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     (918) (718) (310)
Inter-segment | CIB          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     (11,461) (12,240) (11,388)
Inter-segment | International Wealth and Premier Banking          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     2,062 2,642 2,273
Inter-segment | Corporate Center          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     4,596 4,973 4,986
Constant currency          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     68,274 66,009 65,040
Change in expected credit losses and other credit impairment charges     (3,850) (3,392) (3,250)
Net operating income     64,424 62,617 61,790
Total operating expenses     (36,428) (33,146) (31,691)
Operating profit     27,996 29,471 30,099
Share of profit in associates and joint ventures less impairment     1,911 2,913 (297)
Profit before tax     $ 29,907 $ 32,384 $ 29,802
Share of HSBC’s constant currency profit before tax     100.00% 100.00% 100.00%
Constant currency cost efficiency ratio     0.534 0.502 0.487
Loans and advances to customers (net)     $ 988,399 $ 970,778 $ 955,706
Interests in associates and joint ventures     29,577 29,728 27,632
Total external assets     3,233,034 3,139,801 3,095,132
Customer accounts     1,786,828 1,719,240 1,641,000
Constant currency | Hong Kong          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     15,878 15,047 14,532
Change in expected credit losses and other credit impairment charges     (1,476) (1,077) (1,494)
Net operating income     14,402 13,970 13,038
Total operating expenses     (4,826) (4,841) (4,514)
Operating profit     9,576 9,129 8,524
Share of profit in associates and joint ventures less impairment     0 0 0
Profit before tax     $ 9,576 $ 9,129 $ 8,524
Share of HSBC’s constant currency profit before tax     32.00% 28.20% 28.60%
Constant currency cost efficiency ratio     0.304 0.322 0.311
Loans and advances to customers (net)     $ 229,491 $ 235,053 $ 240,173
Interests in associates and joint ventures     0 0 0
Total external assets     437,933 433,588 419,890
Customer accounts     543,381 506,557 486,873
Constant currency | UK          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     12,938 12,342 13,439
Change in expected credit losses and other credit impairment charges     (696) (415) (545)
Net operating income     12,242 11,927 12,894
Total operating expenses     (5,537) (5,104) (4,829)
Operating profit     6,705 6,823 8,065
Share of profit in associates and joint ventures less impairment     0 0 0
Profit before tax     $ 6,705 $ 6,823 $ 8,065
Share of HSBC’s constant currency profit before tax     22.40% 21.10% 27.10%
Constant currency cost efficiency ratio     0.428 0.414 0.359
Loans and advances to customers (net)     $ 303,698 $ 285,778 $ 278,225
Interests in associates and joint ventures     0 0 0
Total external assets     451,492 432,683 423,648
Customer accounts     364,323 352,833 347,570
Constant currency | CIB          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     27,637 26,772 24,723
Change in expected credit losses and other credit impairment charges     (696) (878) (524)
Net operating income     26,941 25,894 24,199
Total operating expenses     (15,556) (14,612) (13,755)
Operating profit     11,385 11,282 10,444
Share of profit in associates and joint ventures less impairment     1 1 (1)
Profit before tax     $ 11,386 $ 11,283 $ 10,443
Share of HSBC’s constant currency profit before tax     38.10% 34.80% 35.00%
Constant currency cost efficiency ratio     0.563 0.546 0.556
Loans and advances to customers (net)     $ 305,022 $ 297,877 $ 290,227
Interests in associates and joint ventures     83 132 128
Total external assets     1,793,162 1,729,531 1,648,421
Customer accounts     597,719 587,926 548,275
Constant currency | International Wealth and Premier Banking          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     14,520 13,817 12,385
Change in expected credit losses and other credit impairment charges     (892) (993) (686)
Net operating income     13,628 12,824 11,699
Total operating expenses     (9,285) (8,900) (8,549)
Operating profit     4,343 3,924 3,150
Share of profit in associates and joint ventures less impairment     24 45 62
Profit before tax     $ 4,367 $ 3,969 $ 3,212
Share of HSBC’s constant currency profit before tax     14.60% 12.30% 10.80%
Constant currency cost efficiency ratio     0.639 0.644 0.690
Loans and advances to customers (net)     $ 150,047 $ 144,027 $ 146,805
Interests in associates and joint ventures     522 557 539
Total external assets     416,332 414,734 460,545
Customer accounts     281,058 271,588 257,664
Constant currency | Corporate Center          
Disclosure of operating segments [line items]          
Net operating income/(expense) before change in expected credit losses and other credit impairment charge     (2,699) (1,969) (39)
Change in expected credit losses and other credit impairment charges     (90) (29) (1)
Net operating income     (2,789) (1,998) (40)
Total operating expenses     (1,224) 311 (44)
Operating profit     (4,013) (1,687) (84)
Share of profit in associates and joint ventures less impairment     1,886 2,867 (358)
Profit before tax     $ (2,127) $ 1,180 $ (442)
Share of HSBC’s constant currency profit before tax     (7.10%) 3.60% (1.50%)
Constant currency cost efficiency ratio     (0.454) 0.158 (1.128)
Loans and advances to customers (net)     $ 141 $ 8,043 $ 276
Interests in associates and joint ventures     28,972 29,039 26,965
Total external assets     134,115 129,265 142,628
Customer accounts     347 336 618
Insurance finance expense     $ 9,700 $ 11,400 $ 8,700
[1] Also referred to as revenue.