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Segment Information - Reconciliation of Segment Assets to Consolidated (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Segment Information: Assets
Total assets	$ 299,186.9	$ 290,578.3
Retirement and Income Solutions
Segment Information: Assets
Total assets	207,716.5	202,294.2
Principal Asset Management
Segment Information: Assets
Total assets	48,273.3	45,950.7
Benefits and Protection
Segment Information: Assets
Total assets	41,703.6	40,048.3
Corporate
Segment Information: Assets
Total assets	$ 1,493.5	$ 2,285.1

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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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