Segment Information (Total Assets by Segment) (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Total assets	$ 234,738	$ 228,591
Annuities
Segment Reporting Information [Line Items]
Total assets	166,807	160,887
Life
Segment Reporting Information [Line Items]
Total assets	21,522	20,821
Run-off
Segment Reporting Information [Line Items]
Total assets	25,279	24,894
Corporate & Other
Segment Reporting Information [Line Items]
Total assets	$ 21,130	$ 21,989