Closed Block (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2023	Jan. 01, 2022
Policyholders’ dividend obligation	$ 792,000,000	$ 0		$ 0	$ 8,027,000,000
Income (loss) before income taxes and equity in earnings of operating joint ventures	3,072,000,000	(1,892,000,000)	$ 10,835,000,000
Dividend Declared
Increase (decrease) in liability	77,000,000	30,000,000	$ (68,000,000)
Excess Of Actual Cumulative Earnings Over Expected Cumulative Earnings
Policyholders’ dividend obligation	2,873,000,000	3,207,000,000
Net unrealized gains (losses) on all other investments
Policyholders’ dividend obligation	$ (2,081,000,000)
Net unrealized gains (losses) on all other investments
Policyholders’ dividend obligation		$ 0