v3.26.1
Stockholders' Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning balance $ 113,616 $ 60,784
Other comprehensive income (loss) before reclassifications (486) 1,481
Amounts reclassified from AOCI into earnings 75 276
Other comprehensive income (loss), net of tax (411) 1,757
Ending balance 112,261 63,542
Securities Available for Sale    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning balance (5,011) (7,544)
Other comprehensive income (loss) before reclassifications (234) 1,071
Amounts reclassified from AOCI into earnings 0 0
Other comprehensive income (loss), net of tax (234) 1,071
Ending balance (5,245) (6,473)
Hedging relationships:    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning balance (541) (1,720)
Other comprehensive income (loss) before reclassifications (242) 394
Amounts reclassified from AOCI into earnings 75 276
Other comprehensive income (loss), net of tax (167) 670
Ending balance (708) (1,050)
Foreign Currency Translation Adjustments    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning balance 81 3
Other comprehensive income (loss) before reclassifications (13) 16
Amounts reclassified from AOCI into earnings 0 0
Other comprehensive income (loss), net of tax (13) 16
Ending balance 68 19
Other:    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning balance 3 (25)
Other comprehensive income (loss) before reclassifications 3 0
Amounts reclassified from AOCI into earnings 0 0
Other comprehensive income (loss), net of tax 3 0
Ending balance 6 (25)
Total    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Beginning balance (5,468) (9,286)
Ending balance (5,879) (7,529)
Net investment hedges    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Other comprehensive gain (loss) $ 74 $ (69)