Annual report [Section 13 and 15(d), not S-K Item 405]

Derivatives - Designated Fair Value Hedged Assets and Liabilities (Details)

v3.25.0.1
Derivatives - Designated Fair Value Hedged Assets and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Derivative [Line Items]    
Hedged Liability, Statement of Financial Position [Extensible Enumeration] Long-term debt Long-term debt
Hedged liability, long-term debt, carrying value $ 188,202 $ 203,986
Hedged liability, long-term debt, cumulative fair value adjustments (7,263) (5,767)
Amortized cost basis of portfolios used in hedging relationships 34,800 39,100
Hedged asset, portfolio layer 26,100 22,500
Cumulative basis adjustments, increase (decrease), hedging relationships (435) 48
AFS securities    
Derivative [Line Items]    
Hedged asset, available-for-sale debt securities and trading account assets, carrying value 244,664 134,077
Hedged asset, available-for-sale debt securities, cumulative fair value adjustments (4,764) (1,793)
Trading account assets    
Derivative [Line Items]    
Hedged asset, available-for-sale debt securities and trading account assets, carrying value 3,639 7,475
Hedged asset, available-for-sale debt securities, cumulative fair value adjustments $ 101 $ 414