v3.25.2
Segmental analysis - Constant currency balance sheet reconciliation (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Disclosure of operating segments [line items]      
Loans and advances to customers (net) $ 981,722 $ 930,658 $ 938,257
Interests in associates and joint ventures 28,202 28,909 28,465
Total external assets 3,214,371 3,017,048 2,975,003
Customer accounts 1,718,604 1,654,955 1,593,834
Constant currency      
Disclosure of operating segments [line items]      
Loans and advances to customers (net) 981,722 974,647 972,779
Interests in associates and joint ventures 28,202 29,273 28,740
Total external assets 3,214,371 3,152,674 3,084,370
Customer accounts $ 1,718,604 1,726,199 1,651,911
Currency translation      
Disclosure of operating segments [line items]      
Loans and advances to customers (net)   43,989 34,522
Interests in associates and joint ventures   364 275
Total external assets   135,626 109,367
Customer accounts   $ 71,244 $ 58,077