Deferred Policy Acquisition Costs, Deferred Reinsurance Losses, Deferred Reinsurance Gains And Deferred Sales Inducements (Balance of and Changes in Deferred Reinsurance Gain) (Details) - USD ($) $ in Thousands		9 Months Ended
	Jan. 01, 2022	Sep. 30, 2023	Sep. 30, 2022
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	$ 252,736	$ 1,492,856	$ 252,736
Amortization		(71,240)	(66,446)
Other		277,161	1,326,509
Balance, end of period		1,698,777	1,512,799
Lotus Re
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Other	1,352,000
Fixed Annuities
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	78,138	57,898	78,138
Amortization		(7,141)	(4,815)
Other		28	(13,803)
Balance, end of period		50,785	59,520
Variable Annuities
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	0	0	0
Amortization		(10,265)	0
Other		277,133	0
Balance, end of period		266,868	0
Variable/Universal Life
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	$ 174,598	1,434,958	174,598
Amortization		(53,834)	(61,631)
Other		0	1,340,312
Balance, end of period		$ 1,381,124	$ 1,453,279