Segment, Geographic and Revenue Information - Assets by Business Segment (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Segment Reporting Information
Assets	$ 1,222,233	$ 1,188,140
Institutional Securities
Segment Reporting Information
Assets	826,242	792,135
Wealth Management
Segment Reporting Information
Assets	378,501	378,438
Investment Management
Segment Reporting Information
Assets	$ 17,490	$ 17,567

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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+ Details