XML 217 R100.htm IDEA: XBRL DOCUMENT v3.22.0.1
Premises, Equipment and Leasehold Improvements (Premises, Equipment and Leasehold Improvements) (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Property, Plant and Equipment [Abstract]    
Total premises, equipment and leasehold improvements $ 16,651 $ 14,843
Accumulated depreciation and amortization (8,058) (7,156)
Net book value $ 8,593 $ 7,687