Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Credit Extension Commitments Narrative (Details)

v3.20.2
Commitments and Contingencies - Credit Extension Commitments Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2020
Jul. 01, 2020
Jan. 01, 2020
Dec. 31, 2019
Sep. 30, 2019
Jul. 01, 2019
Jan. 01, 2019
Commitments and Contingencies Disclosure [Abstract]              
Legally binding unfunded commitments syndicated $ 10,300     $ 10,600      
Carrying amount credit extension commitments syndicated 1,900     829      
Deferred revenue 17     16      
Reserve for unfunded lending commitments 1,910 $ 1,702 $ 1,123   $ 809 $ 806 $ 797
Other liabilities reserve for unfunded lending commitments 1,910     813      
Notional amount of credit extension commitments under fair value option 3,300     4,400      
Unfunded loan commitments              
Other Commitments [Line Items]              
Fair value carrying amount, liabilities $ 122     $ 90