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Segment Information (Reconciliation Of Assets From Segments To Consolidated) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021
Segment Reporting Information [Line Items]
Total assets	$ 335,108	$ 324,174	$ 335,346	$ 365,538	$ 386,945	$ 376,896	$ 379,878	$ 366,573
Annuities Segment [Member]
Segment Reporting Information [Line Items]
Total assets	167,210				201,811
Retirement Plan Services Segment [Member]
Segment Reporting Information [Line Items]
Total assets	41,887				47,643
Life Insurance Segment [Member]
Segment Reporting Information [Line Items]
Total assets	95,413				105,251
Group Protection Segment [Member]
Segment Reporting Information [Line Items]
Total assets	9,802				10,522
Other Operations [Member]
Segment Reporting Information [Line Items]
Total assets	$ 20,796				$ 21,718

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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