Quarterly report pursuant to Section 13 or 15(d)

Variable Interest Entities - Low Income Housing Tax Credit Partnerships (Details)

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Variable Interest Entities - Low Income Housing Tax Credit Partnerships (Details) - Variable Interest Entity - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Dec. 31, 2022
Affordable Housing Tax Credit Partnerships          
Variable Interest Entity [Line Items]          
Affordable housing tax credit investments $ 3,142   $ 3,142   $ 2,891
Less: amortization (956)   (956)   (855)
Net affordable housing tax credit investments 2,186   2,186   2,036
Unfunded commitments 1,304   1,304   $ 1,260
Tax credits and other tax benefits recognized 65 $ 53 131 $ 107  
Proportional Amortization Method          
Variable Interest Entity [Line Items]          
Proportional amortization expense included in provision for income taxes $ 54 $ 44 $ 109 $ 86