v3.26.1
Variable Interest Entities (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Variable Interest Entity [Line Items]          
Aggregate assets $ 517,266   $ 517,266   $ 490,995
Aggregate liabilities 467,119   467,119   441,570
Variable Interest Entity, Not Primary Beneficiary          
Variable Interest Entity [Line Items]          
Amortization 68 $ 47 127 $ 94  
Tax credits and other tax benefits 89 $ 65 166 $ 126  
Aggregate assets 2,695   2,695   2,334
Aggregate liabilities 1,360   1,360   1,111
Maximum exposure to loss 2,798   2,798   2,426
Variable Interest Entity, Not Primary Beneficiary | LIHTC Investments          
Variable Interest Entity [Line Items]          
Aggregate assets 2,446   2,446   2,084
Aggregate liabilities 1,360   1,360   1,111
Maximum exposure to loss 2,446   2,446   2,084
Variable Interest Entity, Not Primary Beneficiary | Other investments          
Variable Interest Entity [Line Items]          
Aggregate assets 249   249   250
Aggregate liabilities 0   0   0
Maximum exposure to loss $ 352   $ 352   $ 342