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Leases (Tables)	12 Months Ended
	Dec. 31, 2021
Leases [Abstract]
Supplemental Balance Sheet Information Related To Operating Leases	December 31, 2021 2020 (in millions)Right-of-use assets1 $ 101 101Lease liabilities1 $ 123 120___________________________ (1)Right-of-use assets are included in other assets and lease liabilities are included in accounts payable, accrued expenses and other liabilities in the Company’s consolidated statements of financial condition.
Lease Cost	Year-Ended December 31, 2021 2020 2019 (in millions)Operating lease cost $ 28 $ 26 $ 25Variable lease cost 5 4 4Total lease cost $ 33 $ 30 $ 29
Undiscounted Cash Flows of Operating Lease	December 31, 2021 (in millions)2022 $ 252023 242024 192025 162026 15Thereafter 43Total undiscounted operating lease payments 142Less: imputed interest (19)Present value of operating lease liabilities $ 123

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- Definition

Supplemental Balance Sheet Information Related To Leases [Table Text Block]

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No definition available.

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- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

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- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

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