Segment Information - Schedule of Assets by Segment (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Segment Reporting Information [Line Items]
Total Assets	$ 339,537	$ 352,586
Operating Segments \| Retail Annuities
Segment Reporting Information [Line Items]
Total Assets	295,091	307,225
Operating Segments \| Closed Life and Annuity Blocks
Segment Reporting Information [Line Items]
Total Assets	26,493	26,988
Operating Segments \| Institutional Products
Segment Reporting Information [Line Items]
Total Assets	12,605	12,869
Corporate and Other
Segment Reporting Information [Line Items]
Total Assets	$ 5,348	$ 5,504

Amount of asset recognized for present right to economic benefit.

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+ Details