Segment Information (Total Assets by Segment) (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Total assets	$ 225,221	$ 228,591
Annuities
Segment Reporting Information [Line Items]
Total assets	157,924	160,887
Life
Segment Reporting Information [Line Items]
Total assets	20,889	20,821
Run-off
Segment Reporting Information [Line Items]
Total assets	25,055	24,894
Corporate & Other
Segment Reporting Information [Line Items]
Total assets	$ 21,353	$ 21,989