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Segment Information - Reconciliation of Segment Assets to Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Segment Information: Assets
Total assets	$ 313,663.6	$ 305,046.7
Retirement and Income Solutions
Segment Information: Assets
Total assets	222,967.0	213,208.3
Principal Asset Management
Segment Information: Assets
Total assets	43,029.4	45,905.2
Benefits and Protection
Segment Information: Assets
Total assets	46,006.7	43,763.5
Corporate
Segment Information: Assets
Total assets	$ 1,660.5	$ 2,169.7

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Amount of asset recognized for present right to economic benefit.

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