Related Party Transactions (Affiliated Asset Transfers) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Related Party Transaction [Line Items]
Realized investment gains (losses)	$ 23,958	$ (5,008,612)	$ 1,522,774	$ (5,054,506)
Affiliated Entity | PALAC - June 2021 - Purchase - Equities
Related Party Transaction [Line Items]
Fair Value	40,284		40,284
Book Value	40,284		40,284
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - September 2021 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	64,374		64,374
Book Value	59,642		59,642
APIC, Net of Tax Increase/(Decrease)	(3,739)		(3,739)
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - September 2021 -Sale - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	37,887		37,887
Book Value	35,264		35,264
APIC, Net of Tax Increase/(Decrease)	2,073		2,073
Realized investment gains (losses)			0
Affiliated Entity | Hirakata LLC - September 2021 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	13,944		13,944
Book Value	13,944		13,944
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance and Annuity Co - September 2021 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	120,256		120,256
Book Value	120,256		120,256
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance and Annuity Co - September 2021 - Sale - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	173,590		173,590
Book Value	166,427		166,427
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			7,163
Affiliated Entity | Prudential Insurance - September 2021 - Purchase - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	45,358		45,358
Book Value	42,127		42,127
APIC, Net of Tax Increase/(Decrease)	(2,553)		(2,553)
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - September 2021 - Sale - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	22,796		22,796
Book Value	21,780		21,780
APIC, Net of Tax Increase/(Decrease)	802		802
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance and Annuity Co - September 2021 - Purchase - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	29,483		29,483
Book Value	29,483		29,483
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance and Annuity Co - September 2021 - Sale - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	51,005		51,005
Book Value	47,020		47,020
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			3,985
Affiliated Entity | Prudential Insurance - September 2021 - Purchase - Derivatives
Related Party Transaction [Line Items]
Fair Value	600		600
Book Value	494		494
APIC, Net of Tax Increase/(Decrease)	(84)		(84)
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - September 2021 - Sale - Derivatives
Related Party Transaction [Line Items]
Fair Value	335		335
Book Value	175		175
APIC, Net of Tax Increase/(Decrease)	127		127
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance and Annuity Co - September 2021 - Purchase - Derivatives
Related Party Transaction [Line Items]
Fair Value	(1,243)		(1,243)
Book Value	(1,243)		(1,243)
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance and Annuity Co - September 2021 - Sale - Derivatives
Related Party Transaction [Line Items]
Fair Value	2,846		2,846
Book Value	770		770
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			2,076
Affiliated Entity | PAR U - November 2021 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	41,021		41,021
Book Value	41,021		41,021
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - November 2021 - Purchase - Derivatives
Related Party Transaction [Line Items]
Fair Value	1,112		1,112
Book Value	1,112		1,112
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - December 2021 - Transfer In - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	2,037,320		2,037,320
Book Value	2,037,320		2,037,320
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PURC - December 2021 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	48,041		48,041
Book Value	48,041		48,041
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - December 2021 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	57,087		57,087
Book Value	57,087		57,087
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - December 2021 - Transfer In - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	517,309		517,309
Book Value	517,309		517,309
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - December 2021 - Contributed Capital - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	166,676		166,676
Book Value	166,676		166,676
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Retirement Insurance & Annuity Co - December 2021 - Sale - Derivatives
Related Party Transaction [Line Items]
Fair Value	31,567		31,567
Book Value	0		0
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			31,567
Affiliated Entity | Prudential Retirement Insurance and Annuity Co- December 2021 - Purchase - Derivatives
Related Party Transaction [Line Items]
Fair Value	73,572		73,572
Book Value	73,572		73,572
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - December 2021 - Purchase - Derivatives
Related Party Transaction [Line Items]
Fair Value	8,455		8,455
Book Value	8,455		8,455
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - January 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	4,432		4,432
Book Value	4,432		4,432
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - January 2022 - Purchase - Derivatives
Related Party Transaction [Line Items]
Fair Value	404		404
Book Value	404		404
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC - February 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	128,909		128,909
Book Value	128,909		128,909
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PAR U - April 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	48,970		48,970
Book Value	48,970		48,970
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - May 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	233,426		233,426
Book Value	241,128		241,128
APIC, Net of Tax Increase/(Decrease)	6,085		6,085
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - June 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	88,754		88,754
Book Value	81,216		81,216
APIC, Net of Tax Increase/(Decrease)	(5,955)		(5,955)
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - June 2022 - Transfer In - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	52,089		52,089
Book Value	45,031		45,031
APIC, Net of Tax Increase/(Decrease)	(5,577)		(5,577)
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - June 2022 - Transfer Out - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	48,786		48,786
Book Value	58,984		58,984
APIC, Net of Tax Increase/(Decrease)	(8,057)		(8,057)
Realized investment gains (losses)			0
Affiliated Entity | PAR U - June 2022 - Purchase - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	6,492		6,492
Book Value	6,492		6,492
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PAR U - June 2022 - Sale - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	14,853		14,853
Book Value	15,725		15,725
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			(872)
Affiliated Entity | GUL Re - June 2022 - Purchase - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	13,551		13,551
Book Value	13,551		13,551
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | GUL Re - June 2022 - Sale - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	8,692		8,692
Book Value	9,033		9,033
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			(341)
Affiliated Entity | PURC - June 2022 - Purchase - Commercial Mortgage and Other Loans
Related Party Transaction [Line Items]
Fair Value	4,403		4,403
Book Value	4,403		4,403
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - July 2022 - Transfer in - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	6,319		6,319
Book Value	7,230		7,230
APIC, Net of Tax Increase/(Decrease)	719		719
Realized investment gains (losses)			0
Affiliated Entity | Prudential Arizona Reinsurance Captive Co - July 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	16,284		16,284
Book Value	16,284		16,284
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | Prudential Insurance - August 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	155,823		155,823
Book Value	139,712		139,712
APIC, Net of Tax Increase/(Decrease)	(12,728)		(12,728)
Realized investment gains (losses)			0
Affiliated Entity | Vantage Casualty Insurance Co - September 2022 - Purchase - Fixed Maturities
Related Party Transaction [Line Items]
Fair Value	3,497		3,497
Book Value	3,497		3,497
APIC, Net of Tax Increase/(Decrease)	$ 0		0
Realized investment gains (losses)			$ 0