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Segment Reporting - Schedule of Segment Non-current Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Assets	$ 121,221	$ 35,885
Liabilities	111,193	29,986
Operating Segments
Segment Reporting Information [Line Items]
Assets	121,182	34,453
Liabilities	107,791	28,789
Equity	13,391	5,664
Annuities | Operating Segments
Segment Reporting Information [Line Items]
Assets	107,208	20,250
Liabilities	98,851	16,922
Equity	8,357	3,328
Property and Casualty | Operating Segments
Segment Reporting Information [Line Items]
Assets	4,742	4,931
Liabilities	2,544	4,120
Equity	2,198	811
Life Insurance | Operating Segments
Segment Reporting Information [Line Items]
Assets	9,232	9,272
Liabilities	6,396	7,747
Equity	$ 2,836	$ 1,525

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