XML 97 R79.htm IDEA: XBRL DOCUMENT v3.20.4
Premises, Equipment and Leases - Maturities of Operating Leases and Reconciliation to Lease Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]    
2021 $ 296  
2022 272  
2023 250  
2024 216  
2025 180  
Thereafter 721  
Total undiscounted lease payments 1,935  
Less: Imputed interest (247)  
Total lease liabilities $ 1,688 $ 1,756