Netting Arrangements - Narratives (Details) - USD ($)	Sep. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Assets, under master netting arrangements, amounts not offset in our condensed consolidated balance sheets, collateral	$ 70,015,000,000	$ 69,427,000,000
Fair value of non-cash collateral received	70,100,000,000	69,500,000,000
Fair value of non-cash collateral received that can be resold or repledged	35,200,000,000	28,700,000,000
Fair value of securities received as collateral that have been resold or re-pledged	0	0
Derivative assets not subject to enforceable master netting arrangements	45,000,000	3,000,000
Derivative liabilities not subject to enforceable master netting arrangements	(14,000,000)	(66,000,000)
Securities purchased under agreements to resell	22,850,000,000	14,565,000,000
Asset pledged as collateral with right to sell or repledge
Derivative [Line Items]
Assets, under master netting arrangements, amounts not offset in our condensed consolidated balance sheets, collateral	2,100,000,000	2,100,000,000
Cash and Cash Equivalents
Derivative [Line Items]
Securities purchased under agreements to resell	34,400,000,000	45,200,000,000
Restricted Cash and Cash Equivalent
Derivative [Line Items]
Securities purchased under agreements to resell	$ 12,800,000,000	$ 9,700,000,000