Related Party Transactions (Narrative) (Details)	1 Months Ended				3 Months Ended				9 Months Ended			12 Months Ended
	Feb. 28, 2023 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)		Sep. 30, 2023 USD ($) policy	Sep. 30, 2022 USD ($)		Dec. 31, 2022 USD ($)
Related Party Transaction [Line Items]
Commissions and fees					$ 346,481,000		$ 369,946,000	[1]	$ 1,096,508,000	$ 857,881,000	[1]
Payments to Fund Policy Loans									1,111,590,000	111,949,000
Policy loans					1,455,484,000				1,455,484,000			$ 505,367,000
Net investment income					460,864,000		210,762,000		1,203,389,000	582,190,000
Other invested assets					1,203,591,000				1,203,591,000			1,088,613,000
Fee income from revenue sharing agreement					56,754,000		68,554,000		177,744,000	219,576,000
Accrued investment income					308,908,000				308,908,000			219,635,000
Return of capital						$ (300,000,000)
Prudential Insurance
Related Party Transaction [Line Items]
Contributed Capital	$ 405,000,000	$ 7,000,000	$ 3,000,000	$ 8,000,000
Dividends									0			0
Return of capital					650,000,000	$ 300,000,000
PGF
Related Party Transaction [Line Items]
Investment Income, Interest					132,000,000				363,000,000
Prudential Insurance
Related Party Transaction [Line Items]
Stock option program plan expense					200,000		300,000		700,000	800,000
Deferred compensation program expense					1,000,000		700,000		4,400,000	3,900,000
Pension plan expense					3,000,000		4,000,000		10,000,000	14,000,000
Welfare plan expense					4,000,000		4,000,000		$ 11,000,000	11,000,000
Defined contribution plan, employer matching contribution, percent (up to)									4.00%
Defined contribution plan, cost recognized					2,000,000		3,000,000		$ 6,000,000	7,000,000
Number of Corporate Owned Life Insurance policies sold | policy									5
Prudential Insurance and Prudential Financial
Related Party Transaction [Line Items]
Life Insurance, Corporate or Bank Owned, amount					3,857,000,000				$ 3,857,000,000			4,512,000,000
Fees related to Life Insurance, Corporate or Bank Owned, amount					13,000,000		13,000,000		38,000,000	40,000,000
Prudential Financial
Related Party Transaction [Line Items]
Company's share of corporate expenses					31,000,000		24,000,000		$ 104,000,000	58,000,000
Number of Corporate Owned Life Insurance policies sold | policy									1
Payments to Fund Policy Loans									$ 900,000,000
Policy loans					898,000,000				898,000,000
Interest Income on Policy Loans					10,000,000				15,000,000
Affiliated Entity
Related Party Transaction [Line Items]
Net investment income					2,000,000		1,000,000		5,000,000	3,000,000
Accrued interest receivable related to long-term notes receivable					300,000				300,000			1,000,000
Revenues related to long-term notes receivable					0		1,000,000		2,000,000	3,000,000
Accrued investment income					500,000				500,000			500,000
Line of credit facility, maximum borrowing capacity					7,000,000,000				7,000,000,000
Interest expense related to loans payable, Related Party					5,000,000		(32,000,000)		10,000,000	(37,000,000)
Affiliated Entity | PAD
Related Party Transaction [Line Items]
Commissions and fees					153,000,000		139,000,000		440,000,000	471,000,000
Affiliated Entity | PGIM
Related Party Transaction [Line Items]
Net investment income					14,000,000		11,000,000		39,000,000	29,000,000
Affiliated Entity | ASTISI and PGIM Investments
Related Party Transaction [Line Items]
Fee income from revenue sharing agreement					69,000,000		74,000,000		208,000,000	237,000,000
Affiliated Entity | PGIM Investments
Related Party Transaction [Line Items]
Fee income from revenue sharing agreement					10,000,000		9,000,000		28,000,000	28,000,000
Prudential Financial Joint Ventures
Related Party Transaction [Line Items]
Net investment income					6,000,000		$ 2,000,000		2,000,000	$ 21,000,000
Other invested assets					$ 710,000,000				$ 710,000,000			$ 606,000,000

[1] Prior period amounts adjusted for the implementation of ASU 2018-12: Targeted Improvements to the Accounting for Long-Duration Contracts.