Deferred Policy Acquisition Costs, Deferred Reinsurance, and Deferred Sales Inducements (DRG) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	$ 3,318,785	$ 1,673,290
Amortization expense	(41,819)	(38,388)
Other	13,723	1,099,783
Foreign currency adjustment	107
Balance, end of period	3,290,796	2,734,685
Fixed Annuities
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	37,548	48,073
Amortization expense	(2,460)	(2,688)
Other	(8)	(9)
Foreign currency adjustment	0
Balance, end of period	35,080	45,376
Variable Annuities
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	241,628	261,721
Amortization expense	(4,908)	(5,056)
Other	33	(40)
Foreign currency adjustment	0
Balance, end of period	236,753	256,625
Variable/Universal Life
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	3,039,609	1,363,496
Amortization expense	(34,289)	(30,644)
Other	0	1,099,832
Foreign currency adjustment	0
Balance, end of period	3,005,320	2,432,684
Variable/Universal Life | Somerset Re
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Other	1,207,000
Variable/Universal Life | PURC
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Other	116,000
International
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, beginning of period	0	0
Amortization expense	(162)	0
Other	13,698	0
Foreign currency adjustment	107
Balance, end of period	13,643	$ 0
International | Prudential of Japan
Reinsurance Recoverable, Allowance for Credit Gain [Roll Forward]
Balance, end of period	$ 14,000