Insurance Liabilities (Future Policy Benefits - SOP) (Details) - ULSG - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Additional Liability, Long-Duration Insurance [Line Items]
Additional Liability, Long-Duration Insurance, before Reinsurance, after Discount Rate Change	$ 10,077	$ 8,986	$ 7,607	$ 6,935
Additional Liability, Long-Duration Insurance, Original Discount Rate, before Cash Flow and Reinsurance	10,298	9,277	7,784	7,175
Additional Liability, Long-Duration Insurance, Cumulative Increase (Decrease) from Cash Flow Change		480	895	52
Additional Liability, Long-Duration Insurance, Cumulative Increase (Decrease) of Actual Variance from Expected Experience		133	167	145
Additional Liability, Long-Duration Insurance, Original Discount Rate, before Reinsurance, after Cash Flow Change		9,890	8,846	$ 7,372
Additional Liability, Long-Duration Insurance, Interest Income (Expense)	469	406	357
Additional Liability, Long-Duration Insurance, Net Premium Collected	480	446	414
Additional Liability, Long-Duration Insurance, Benefit Payment	(541)	(421)	(359)
AOCI, Liability for Future Policy Benefit, before Tax	(221)	(291)	(177)
Additional Liability, Long-Duration Insurance, Reinsurance Recoverable, after Allowance	1,801	1,535	1,438
Additional Liability, Long-Duration Insurance, after Reinsurance	$ 8,276	$ 7,451	$ 6,169
Additional Liability, Long-Duration Insurance, Weighted-Average Duration	6 years 7 months 6 days	6 years 7 months 6 days	6 years 8 months 12 days
Additional Liability, Long-Duration Insurance, Weighted-Average Interest Accretion Rate	4.95%	4.94%	4.92%
Additional Liability, Long-Duration Insurance, Gross Premium Income	$ 1,076	$ 1,083	$ 1,064