Basis of Presentation (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Effective tax rate	17.20%	19.80%	19.10%	17.70%
Income tax benefit related to finalizing the Firm’s 2020 U.S. federal tax return	$ 566		$ 566
Reduction in effective tax rate related to finalizing the Firm’s 2020 U.S. federal tax return	4.00%		1.20%

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32687-109319

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Period Type:	duration