Investments (Borrowed Securities Repurchased Securities And Repurchased Reversed Repurchased Securities) (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Securities Financing Transaction [Line Items]
Securities Loaned, Fair Value of Collateral		$ 53	$ 55
Securities Financing Transaction, Cost
Securities Financing Transaction [Line Items]
Collateralized Agreements	[1]	762	859
Securities Loaned, Fair Value of Collateral	[1]	60	59
Securities for Reverse Repurchase Agreements	[1]	1,344	898
Cash Received	[2]	551	149
Securities Financing Transaction, Fair Value
Securities Financing Transaction [Line Items]
Securities Borrowed	[3]	776	852
Collateralized Agreements	[1]	603	693
Securities Loaned, Fair Value of Collateral	[1]	53	55
Securities Received as Collateral	[4]	66	66
Securities for Reverse Repurchase Agreements	[1]	1,187	779
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Securities	[4]	496	619
Cash Received	[2]	$ 551	$ 149

[1] Securities loaned, pledged or sold to counterparties are included within fixed maturity securities.

[2] A payable for the cash received by the Company is included within other liabilities.

[3] Securities borrowed are not reflected on the condensed consolidated balance sheets. Collateral associated with certain borrowed securities is not included within this table as the collateral pledged to the counterparty is the right to reinsurance treaty cash flows.

[4] Securities received as collateral or purchased from counterparties are not reflected on the condensed consolidated financial statements.