Related Party Transactions (Narrative) (Details)	3 Months Ended				12 Months Ended
	Mar. 31, 2022 USD ($) policy	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Related Party Transaction [Line Items]
Commissions and fees	$ 191,562,000			$ 151,865,000
Net investment income	179,300,000			98,867,000
Other invested assets	1,117,460,000	$ 1,209,925,000			$ 1,209,925,000
Fee income from revenue sharing agreement	79,232,000			6,211,000
Accrued investment income	138,781,000	160,027,000			160,027,000
Prudential Insurance
Related Party Transaction [Line Items]
Contributed Capital	8,000,000	457,000,000	$ 3,813,000,000	106,000,000
Return of Capital		34,000,000
Dividends	0				0
PALAC
Related Party Transaction [Line Items]
Market value of loan			324,000,000
Premium			$ 24,000,000
Prudential Insurance
Related Party Transaction [Line Items]
Stock option program plan expense	100,000			100,000
Deferred compensation program expense	2,700,000			1,500,000
Pension plan expense	5,000,000			3,000,000
Welfare plan expense	$ 4,000,000			3,000,000
Defined contribution plan, employer matching contribution, percent (up to)	4.00%
Defined contribution plan, cost recognized	$ 2,000,000			1,000,000
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	$ 5,001,000,000	5,248,000,000			5,248,000,000
Fees related to Life Insurance, Corporate or Bank Owned, amount	14,000,000			13,000,000
Maximum amount of mortality risk	3,500,000
Prudential Financial
Related Party Transaction [Line Items]
Company's share of corporate expenses	$ 13,000,000			18,000,000
Number of Corporate Owned Life Insurance policies sold | policy	1
Affiliated Entity
Related Party Transaction [Line Items]
Net investment income	$ 900,000
Accrued interest receivable related to long-term notes receivable	400,000	400,000			400,000
Revenues related to long-term notes receivable	1,000,000			1,000,000
Accrued investment income	300,000
Line of credit facility, maximum borrowing capacity	2,200,000,000
Interest expense related to loans payable	300,000			0
Invested Assets		167,000,000			167,000,000
Affiliated Entity | PAD
Related Party Transaction [Line Items]
Commissions and fees	170,000,000			96,000,000
Affiliated Entity | PGIM
Related Party Transaction [Line Items]
Net investment income	8,000,000			4,000,000
Affiliated Entity | ASTISI and PGIM Investments
Related Party Transaction [Line Items]
Fee income from revenue sharing agreement	85,000,000			91,000,000
Affiliated Entity | PGIM Investments
Related Party Transaction [Line Items]
Fee income from revenue sharing agreement	10,000,000			3,000,000
Prudential Financial Joint Ventures
Related Party Transaction [Line Items]
Net investment income	13,000,000			$ 3,000,000
Other invested assets	$ 474,000,000	$ 466,000,000			$ 466,000,000