Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Credit Extension Commitments Narrative (Details)

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Commitments and Contingencies - Credit Extension Commitments Narrative (Details) - USD ($)
$ in Millions
Mar. 31, 2024
Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]    
Legally binding unfunded commitments syndicated $ 9,900 $ 10,300
Credit extension commitments, carrying value 1,200 1,200
Notional amount of credit extension commitments under fair value option 3,100 2,600
Unfunded loan commitments    
Other Commitments [Line Items]    
Fair value carrying amount, liabilities $ 78 $ 67