Annual report pursuant to Section 13 and 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
Dec. 31, 2021
Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]    
Legally binding unfunded commitments syndicated $ 10,700 $ 10,500
Credit extension commitments, carrying value 1,500 1,900
Notional amount of credit extension commitments under fair value option 4,800 4,000
Unfunded loan commitments    
Other Commitments [Line Items]    
Fair value carrying amount, liabilities $ 97 $ 99