Investments (Borrowed Securities Repurchased Securities And Repurchased Reversed Repurchased Securities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Securities Financing Transaction [Line Items]
Securities Received as Collateral	$ 102	$ 102
Securities Financing Transaction, Cost
Securities Financing Transaction [Line Items]
Securities Borrowed	374	118
Securities Loaned, Fair Value of Collateral	94	94
Securities for Reverse Repurchase Agreements	704	653
Cash	10	0
Securities Financing Transaction, Fair Value
Securities Financing Transaction [Line Items]
Securities Borrowed	420	161
Securities Loaned, Fair Value of Collateral	102	105
Securities for Reverse Repurchase Agreements	736	711
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities	728	669
Cash	$ 10	$ 0

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount, after the effects of master netting arrangements, of securities borrowed from entities in exchange for collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.

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The carrying value of securities purchased to be resold in reverse repurchase transactions as of the balance sheet date.

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Fair value of the securities pledged as collateral against securities loaned.

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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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Amount of right to receive securities collateral under master netting arrangements that have not been offset against securities sold under agreement to repurchase.

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