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Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Nominal or face amount used to calculate payment on derivative.

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The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer.

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Amount, before tax, of reclassification from accumulated other comprehensive income (AOCI) for gain (loss) from discontinuance of cash flow hedge included in assessment of hedge effectiveness.

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The carrying value as of the balance sheet date of the assets received as collateral against securities loaned to other broker-dealers. Borrowers of securities generally are required to provide collateral to the lenders of securities, commonly cash but sometimes other securities or standby letters of credit, with a value slightly higher than that of the securities borrowed. In instances where the entity is permitted to sell or re-pledge these securities, the entity reports the fair value of the collateral received and the related obligation to return the collateral as a liability.

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Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions.

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Derivatives - Narrative (Details) - USD ($)	6 Months Ended		12 Months Ended
Derivatives - Narrative (Details) - USD ($)	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 30, 2021
Derivative [Line Items]
Derivative, Notional Amount	$ 41,327,000,000		$ 40,228,000,000
Invested Assets Suppoting Modco	775,000,000		843,000,000
Gain (loss) reclassification from ACOI, estimated net amount to be transferred	1,000,000
Reclassifications from AOCI to earnings resulting from the discontinuance of cash-flow hedges	0	$ 0	0	$ 0
Security Owned and Pledged as Collateral, Fair Value	2,000,000		48,000,000
Margin Deposit Assets	4,000,000		7,000,000
Derivative Asset, Collateral, Obligation to Return Cash, Offset	172,000,000		208,000,000
Securities Received as Collateral	30,000,000		65,000,000
Fair value securities
Derivative [Line Items]
Securities Received as Collateral	5,000,000				$ 0
Collateral Pledged
Derivative [Line Items]
Security Owned and Pledged as Collateral, Fair Value	270,000,000		526,000,000
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	41,227,000,000		40,203,000,000
Interest rate swaps \| Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative, Notional Amount	$ 506,000,000		$ 1,300,000,000