v3.10.0.1
Quarterly Results (Unaudited) (Subnote) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2017
Net intermittent discrete tax benefits, primarily related to the remeasurement of reserves and related interest $ 111 $ 168 $ 168
Net intermittent discrete tax provision     1,201
Wealth Management      
Net intermittent discrete tax benefits, primarily related to the remeasurement of reserves and related interest     0
Net intermittent discrete tax provision     402
Investment Management      
Net intermittent discrete tax benefits, primarily related to the remeasurement of reserves and related interest     0
Net intermittent discrete tax provision     $ 94
Impairment of equity method investment $ 46 $ 53