v3.25.4
Provisions - Rollforward of provisions (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance $ 1,724 $ 1,741
Provisions, ending balance 3,441 1,724
Provisions (excluding contractual commitments)    
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance 1,036 1,214
Additions 2,784 625
Amounts utilised (808) (574)
Unused amounts reversed (257) (243)
Exchange and other movements 51 14
Provisions, ending balance 2,806 1,036
Restructuring costs    
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance 199 284
Additions 991 181
Amounts utilised (525) (193)
Unused amounts reversed (108) (63)
Exchange and other movements 21 (10)
Provisions, ending balance 578 199
Legal proceedings and regulatory matters    
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance 295 380
Additions 1,580 205
Amounts utilised (194) (228)
Unused amounts reversed (47) (63)
Exchange and other movements 28 1
Provisions, ending balance 1,662 295
Customer remediation    
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance 85 130
Additions 39 36
Amounts utilised (25) (48)
Unused amounts reversed (34) (35)
Exchange and other movements 4 2
Provisions, ending balance 69 85
Other provisions    
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance 457 420
Additions 174 203
Amounts utilised (64) (105)
Unused amounts reversed (68) (82)
Exchange and other movements (2) 21
Provisions, ending balance 497 457
Contractual commitments1    
Reconciliation of changes in other provisions [abstract]    
Provisions, beginning balance 688 527
Net change in expected credit loss provision and other movements (53) 161
Provisions, ending balance $ 635 $ 688