Pruco Life Insurance 10-Q 13 Aug 19 2019 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 13, 2019
Cover page.
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Transition Report	false
Entity File Number	033-37587
Entity Registrant Name	PRUCO LIFE INSURANCE CO
Entity Central Index Key	0000777917
Entity Incorporation, State or Country Code	AZ
Entity Tax Identification Number	22-1944557
Entity Address, Address Line One	213 Washington Street
Entity Address, City or Town	Newark
Entity Address, State or Province	NJ
Entity Address, Postal Zip Code	07102
City Area Code	973
Local Phone Number	802-6000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		250,000

Unaudited Interim Consolidated

Unaudited Interim Consolidated Statements of Financial Position - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
ASSETS
Fixed maturities, available for sale, at fair value (amortized cost: 2019 – $5,623,693; 2018 – $5,244,903)	$ 5,956,391	$ 5,199,595
Fixed maturities, trading, at fair value (amortized cost: 2019 – $50,775; 2018 – $44,759)	49,417	41,627
Equity securities, at fair value (cost: 2019 – $12,454; 2018 – $31,824)	17,774	36,922
Policy loans	1,263,413	1,236,077
Short-term Investments	94	0
Commercial mortgage and other loans	1,225,668	1,209,150
Other invested assets (includes $87,580 and $120,717 measured at fair value at June 30, 2019 and December 31, 2018, respectively)	394,951	377,429
Total investments	8,907,708	8,100,800
Cash and cash equivalents	415,497	416,840
Deferred policy acquisition costs	1,720,404	1,613,922
Accrued investment income	93,167	88,278
Reinsurance recoverables	38,946,785	34,682,127
Receivables from parent and affiliates	268,854	289,580
Income Taxes Receivable	67,498	46,102
Other assets	370,240	365,219
Separate account assets	132,731,982	119,077,916
TOTAL ASSETS	183,522,135	164,680,784
LIABILITIES
Policyholders’ account balances	22,058,265	22,059,692
Future policy benefits	24,169,202	19,476,394
Cash collateral for loaned securities	7,083	11,063
Payables to parent and affiliates	146,207	229,345
Other liabilities	1,262,599	1,093,143
Separate account liabilities	132,731,982	119,077,916
Total liabilities	180,375,338	161,947,553
COMMITMENTS AND CONTINGENT LIABILITIES
EQUITY
Common stock ($10 par value; 1,000,000 shares authorized; 250,000 shares issued and outstanding)	2,500	2,500
Additional paid-in capital	1,146,588	1,146,592
Retained earnings	1,747,544	1,612,435
Accumulated other comprehensive income (loss)	250,165	(28,296)
Total equity	3,146,797	2,733,231
TOTAL LIABILITIES AND EQUITY	$ 183,522,135	$ 164,680,784

Unaudited Interim Consolidate_2

Unaudited Interim Consolidated Statements of Financial Position (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Fixed maturities, available for sale, amortized cost	$ 5,623,693	$ 5,244,903
Fixed maturities, trading, amortized cost	50,775	44,759
Equity securities, cost	12,454	31,824
Other invested assets, at fair value	$ 87,580	$ 120,717
Common stock, par value (in dollars per share)	$ 10	$ 10
Common stock, shares authorized	1,000,000	1,000,000
Common stock, shares issued	250,000	250,000
Common stock, shares outstanding	250,000	250,000

Unaudited Interim Consolidate_3

Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
REVENUES
Premiums	$ 12,417	$ 14,903	$ 26,411	$ 22,818
Policy charges and fee income	148,671	169,004	287,860	298,159
Net investment income	105,562	81,649	198,812	159,564
Asset administration fees	3,961	3,544	7,618	7,017
Other income	14,998	16,078	35,955	35,374
Realized investment gains (losses), net:
Other-than-temporary impairments on fixed maturity securities	0	(57)	(2,784)	(651)
Other-than-temporary impairments on fixed maturity securities transferred to other comprehensive income	0	0	(379)	0
Other realized investment gains (losses), net	(52,250)	(36,833)	(97,722)	(85,281)
Total realized investment gains (losses), net	(52,250)	(36,890)	(100,885)	(85,932)
TOTAL REVENUES	233,359	248,288	455,771	437,000
BENEFITS AND EXPENSES
Policyholders’ benefits	46,291	40,441	85,769	92,177
Interest credited to policyholders’ account balances	50,710	42,555	94,907	83,353
Amortization of deferred policy acquisition costs	41,672	62,316	60,851	88,461
General, administrative and other expenses	80,564	79,669	128,508	140,459
TOTAL BENEFITS AND EXPENSES	219,237	224,981	370,035	404,450
INCOME (LOSS) FROM OPERATIONS BEFORE INCOME TAXES AND EQUITY IN EARNINGS OF OPERATING JOINT VENTURE	14,122	23,307	85,736	32,550
Income tax expense (benefit)	(34,585)	(13,012)	(51,465)	(15,711)
INCOME (LOSS) FROM OPERATIONS BEFORE EQUITY IN EARNINGS OF OPERATING JOINT VENTURE	48,707	36,319	137,201	48,261
Equity in earnings of operating joint venture, net of taxes	(272)	(93)	(978)	(731)
NET INCOME (LOSS)	48,435	36,226	136,223	47,530
Other comprehensive income (loss), before tax:
Foreign currency translation adjustments	958	(5,667)	7,007	(6,590)
Net unrealized investment gains (losses)	183,514	(82,003)	343,599	(227,054)
Total	184,472	(87,670)	350,606	(233,644)
Less: Income tax expense (benefit) related to other comprehensive income (loss)	38,512	(18,363)	72,145	(49,063)
Other comprehensive income (loss), net of taxes	145,960	(69,307)	278,461	(184,581)
Comprehensive income (loss)	$ 194,395	$ (33,081)	$ 414,684	$ (137,051)

Unaudited Interim Consolidate_4

Unaudited Interim Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total Equity
Beginning Balance at Dec. 31, 2017		$ 2,500	$ 1,141,092	$ 1,526,310	$ 165,346	$ 2,835,248
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributed capital			5,500			5,500
Contributed (distributed) capital-parent/child asset transfers			0			0
Comprehensive income (loss):
Net income (loss)				11,304		11,304
Other comprehensive income (loss), net of tax					(115,274)	(115,274)
Total comprehensive income (loss)						(103,970)
Ending Balance at Mar. 31, 2018		2,500	1,146,592	1,515,151	78,932	2,743,175
Beginning Balance at Dec. 31, 2017		2,500	1,141,092	1,526,310	165,346	2,835,248
Comprehensive income (loss):
Net income (loss)	$ 47,530
Other comprehensive income (loss), net of tax	(184,581)
Ending Balance at Jun. 30, 2018		2,500	1,146,479	1,551,327	9,675	2,709,981
Beginning Balance at Mar. 31, 2018		2,500	1,146,592	1,515,151	78,932	2,743,175
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributed capital			(113)			(113)
Contributed (distributed) capital-parent/child asset transfers			0			0
Comprehensive income (loss):
Net income (loss)	36,226			36,226		36,226
Other comprehensive income (loss), net of tax	(69,307)				(69,307)	(69,307)
Total comprehensive income (loss)						(33,081)
Ending Balance at Jun. 30, 2018		2,500	1,146,479	1,551,327	9,675	2,709,981
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of adoption | ASU 2016-01					(1,539)
Cumulative effect of adoption | ASU 2018-02					30,449
Cumulative effect of adoption	(27)
Beginning Balance at Dec. 31, 2018		2,500	1,146,592	1,612,435	(28,296)	2,733,231
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributed capital			0			0
Contributed (distributed) capital-parent/child asset transfers			(4)			(4)
Comprehensive income (loss):
Net income (loss)				87,788		87,788
Other comprehensive income (loss), net of tax					132,501	132,501
Total comprehensive income (loss)						220,289
Ending Balance at Mar. 31, 2019		2,500	1,146,588	1,699,109	104,205	2,952,402
Beginning Balance at Dec. 31, 2018		2,500	1,146,592	1,612,435	(28,296)	2,733,231
Comprehensive income (loss):
Net income (loss)	136,223
Other comprehensive income (loss), net of tax	278,461
Ending Balance at Jun. 30, 2019		2,500	1,146,588	1,747,544	250,165	3,146,797
Beginning Balance at Mar. 31, 2019		2,500	1,146,588	1,699,109	104,205	2,952,402
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributed capital			0			0
Contributed (distributed) capital-parent/child asset transfers			0			0
Comprehensive income (loss):
Net income (loss)	48,435			48,435		48,435
Other comprehensive income (loss), net of tax	$ 145,960				145,960	145,960
Total comprehensive income (loss)						194,395
Ending Balance at Jun. 30, 2019		$ 2,500	$ 1,146,588	$ 1,747,544	$ 250,165	$ 3,146,797

Unaudited Interim Consolidate_5

Unaudited Interim Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 136,223	$ 47,530
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Policy charges and fee income	(135,809)	(75,175)
Interest credited to policyholders’ account balances	94,907	83,353
Realized investment (gains) losses, net	100,885	85,932
Amortization and other non-cash items	(52,217)	(20,135)
Change in:
Future policy benefits	1,388,982	870,715
Reinsurance recoverables	(1,339,652)	(799,012)
Accrued investment income	(4,889)	(3,172)
Net payables to/receivables from parent and affiliates	(69,192)	(41,905)
Deferred policy acquisition costs	(133,641)	(56,030)
Income taxes	(93,244)	22,585
Derivatives, net	98,778	(2,927)
Other, net	(32,189)	(127,216)
Cash flows from (used in) operating activities	(41,058)	(15,457)
Proceeds from the sale/maturity/prepayment of:
Fixed maturities, available-for-sale	179,330	247,967
Fixed maturities, trading	0	0
Equity securities	21,656	90
Policy loans	78,129	77,733
Ceded policy loans	(6,285)	(7,833)
Short-term investments	369	6,244
Commercial mortgage and other loans	36,892	40,542
Other invested assets	10,206	7,171
Payments for the purchase/origination of:
Fixed maturities, available-for-sale	(566,299)	(524,177)
Fixed maturities, trading	6,015	0
Equity securities	(110)	(5,000)
Policy loans	(81,818)	(81,882)
Ceded policy loans	8,112	8,198
Short-term investments	(463)	(5,270)
Commercial mortgage and other loans	(53,190)	(82,690)
Other invested assets	(34,855)	(44,314)
Notes receivable from parent and affiliates, net	9,995	4,084
Derivatives, net	729	(327)
Other, net	(3,404)	(2,709)
Cash flows from (used in) investing activities	(407,021)	(362,173)
CASH FLOWS FROM FINANCING ACTIVITIES:
Policyholders’ account deposits	2,702,683	2,331,075
Ceded policyholders’ account deposits	(1,784,740)	(1,572,155)
Policyholders’ account withdrawals	(1,712,728)	(1,462,569)
Ceded policyholders’ account withdrawals	1,241,925	956,062
Net change in securities sold under agreement to repurchase and cash collateral for loaned securities	(3,980)	(20,031)
Contributed (distributed) capital - parent/child asset transfers	(5)	0
Net change in financing arrangements (maturities 90 days or less)	0	1,727
Drafts outstanding	3,581	3,158
Cash flows from (used in) financing activities	446,736	237,267
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(1,343)	(140,363)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	416,840	212,569
CASH AND CASH EQUIVALENTS, END OF PERIOD	$ 415,497	$ 72,206

Business and Basis of Presentat

Business and Basis of Presentation	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business and Basis of Presentation	BUSINESS AND BASIS OF PRESENTATION Pruco Life Insurance Company (“Pruco Life”) is a wholly-owned subsidiary of The Prudential Insurance Company of America (“Prudential Insurance”), which in turn is a direct wholly-owned subsidiary of Prudential Financial, Inc. (“Prudential Financial”). Pruco Life is a stock life insurance company organized in 1971 under the laws of the State of Arizona. It is licensed to sell life insurance and annuities in the District of Columbia, Guam and in all states except New York, and sells such products primarily through affiliated and unaffiliated distributors. Pruco Life has one wholly-owned insurance subsidiary, Pruco Life Insurance Company of New Jersey (“PLNJ”) and had one indirect subsidiary formed in 2009 for the purpose of holding certain commercial mortgage loans and other investments, which ceased operations and was dissolved as of December 31, 2018. Pruco Life and its subsidiary are together referred to as the "Company", "we" or "our" and all financial information is shown on a consolidated basis. PLNJ is a stock life insurance company organized in 1982 under the laws of the state of New Jersey. It is licensed to sell life insurance and annuities in New Jersey and New York only. Basis of Presentation The Unaudited Interim Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) on a basis consistent with reporting interim financial information in accordance with instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities and Exchange Commission (“SEC”). Intercompany balances and transactions have been eliminated. In the opinion of management, all adjustments necessary for a fair statement of the financial position and results of operations have been made. All such adjustments are of a normal, recurring nature. Interim results are not necessarily indicative of the results that may be expected for the full year. These financial statements should be read in conjunction with the Company’s Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The most significant estimates include those used in determining deferred policy acquisition costs ("DAC") and related amortization; amortization of deferred sales inducements ("DSI"); valuation of investments including derivatives and the recognition of other-than-temporary impairments (“OTTI”); future policy benefits including guarantees; reinsurance recoverables; provision for income taxes and valuation of deferred tax assets; and accruals for contingent liabilities, including estimates for losses in connection with unresolved legal and regulatory matters. Out of Period Adjustment During the second quarter of 2019, the Company recorded an out of period adjustment resulting in a net increase of $11 million to "Income (loss) from operations before income taxes and equity in earnings of operating joint venture" for the three months ended June 30, 2019. This adjustment relates to investment income from equity method investments that should have been recorded during first quarter of 2019. Management has evaluated the impact of all out of period adjustments, both individually and in the aggregate, and concluded that they are not material to any current or previously reported quarterly or annual financial statements. Reclassifications Certain amounts in prior periods have been reclassified to conform to the current period presentation.

Significant Accounting Policies

Significant Accounting Policies and Pronouncements	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Significant Accounting Policies and Pronouncements	SIGNIFICANT ACCOUNTING POLICIES AND PRONOUNCEMENTS Recent Accounting Pronouncements Changes to U.S. GAAP are established by the Financial Accounting Standards Board ("FASB") in the form of Accounting Standards Updates ("ASU") to the FASB Accounting Standards Codification. The Company considers the applicability and impact of all ASU. ASU listed below include those that have been adopted during the current fiscal year and/or those that have been issued but not yet adopted as of the date of this filing. ASU not listed below were assessed and determined to be either not applicable or not material. ASU adopted during the six months ended June 30, 2019 . Standard Description Effective date and method of adoption Effect on the financial statements or other significant matters ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20) Premium Amortization on Purchased Callable Debt Securities This ASU requires certain premiums on callable debt securities to be amortized to the earliest call date. January 1, 2019 using the modified retrospective method which included cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. Adoption of the ASU did not have a significant impact on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements. The impact of the cumulative-effect adjustment to retained earnings was immaterial. ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities This ASU makes targeted changes to the existing hedge accounting model to better portray the economics of an entity’s risk management activities and to simplify the use of hedge accounting. The ASU eliminates separate measurement and recording of hedge ineffectiveness. It requires entities to present the earnings effect of the hedging instrument in the same income statement line item in which the hedged item is reported and also requires expanded disclosures. January 1, 2019 using the modified retrospective method which included cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. Adoption of the ASU did not have a significant impact on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements. The impact of the cumulative-effect adjustment to retained earnings and accumulated other comprehensive income (loss) ("AOCI") related to ineffectiveness of the hedge instruments outstanding at the date of the adoption was immaterial. See Note 4 for additional required disclosures. ASU issued but not yet adopted as of June 30, 2019 — ASU 2018-12 ASU 2018-12, Financial Services - Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts, was issued by the FASB on August 15, 2018 and is expected to have a significant impact on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements. In July 2019, the FASB made a tentative decision to defer the effective date of this ASU to January 1, 2022 (with early adoption permitted), representing a one year extension from the original effective date of January 1, 2021. A final decision regarding the effective date is expected in the third quarter of 2019. This ASU will impact, at least to some extent, the accounting and disclosure requirements for all long-duration insurance and investment contracts issued by the Company. Outlined below are four key areas of change, although there are other changes not noted below. In addition to the impacts to the balance sheet upon adoption, the Company also expects an impact to how earnings emerge thereafter. ASU 2018-12 Amended Topic Description Method of adoption Effect on the financial statements or other significant matters Cash flow assumptions used to measure the liability for future policy benefits for non-participating traditional and limited-pay insurance products Requires an entity to review, and if necessary, update the cash flow assumptions used to measure the liability for future policy benefits, for both changes in future assumptions and actual experience, at least annually using a retrospective update method with a cumulative catch-up adjustment recorded in a separate line item in the Consolidated Statements of Operations. An entity may choose one of two adoption methods for the liability for future policy benefits: (1) a modified retrospective transition method whereby the entity will apply the amendments to contracts in force as of the beginning of the earliest period presented on the basis of their existing carrying amounts, adjusted for the removal of any related amounts in AOCI or (2) a full retrospective transition method. The options for method of adoption and the impacts of such methods are under assessment. Discount rate assumption used to measure the liability for future policy benefits for non-participating traditional and limited-pay insurance products Requires discount rate assumptions to be based on an upper-medium grade fixed income instrument yield and will be required to be updated each quarter with the impact recorded through Other Comprehensive Income ("OCI"). As noted above, an entity may choose either a modified retrospective transition method or full retrospective transition method for the liability for future policy benefits. Under either method, for balance sheet remeasurement purposes, the liability for future policy benefits will be remeasured using current discount rates as of the beginning of the earliest period presented with the impact recorded as a cumulative effect adjustment to AOCI. Upon adoption, under either transition method, there will be an adjustment to AOCI as a result of remeasuring in force contract liabilities using current upper-medium grade fixed income instrument yields. The adjustment upon adoption will largely reflect the difference between the discount rate locked-in at contract inception versus current discount rates at transition. The magnitude of such adjustment is currently being assessed. Amortization of DAC and other balances Requires DAC and other balances, such as unearned revenue reserves and DSI, to be amortized on a constant level basis over the expected term of the related contract, independent of expected profitability. An entity may apply one of two adoption methods: (1) a modified retrospective transition method whereby the entity will apply the amendments to contracts in force as of the beginning of the earliest period presented on the basis of their existing carrying amounts, adjusted for the removal of any related amounts in AOCI or (2) if an entity chooses a full retrospective transition method for its future policy benefits, as described above, it is required to also use a retrospective transition method for DAC and other balances. The options for method of adoption and the impacts of such methods are under assessment. Under the modified retrospective transition method, the Company would not expect a significant impact to the balance sheet, other than the impact of the removal of any related amounts in AOCI. Market Risk Benefits Requires an entity to measure all market risk benefits (e.g., living benefit and death benefit guarantees associated with variable annuities) at fair value with changes in value attributable to changes in an entity’s non-performance risk ("NPR") to be recognized in OCI. An entity will apply a retrospective transition method which will include a cumulative-effect adjustment on the balance sheet as of the earliest period presented. Upon adoption, the Company expects an impact to retained earnings for the difference between the fair value and carrying value of benefits not currently measured at fair value (e.g., guaranteed minimum death benefits on variable annuities) and an impact from reclassifying the cumulative effect of changes in NPR from retained earnings to AOCI. The magnitude of such adjustments is currently being assessed. Other ASU issued but not yet adopted as of June 30, 2019 Standard Description Effective date and method of adoption Effect on the financial statements or other significant matters ASU 2016-13 , Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments This ASU provides a new current expected credit loss model to account for credit losses on certain financial assets and off-balance sheet exposures (e.g., loans held for investment, debt securities held to maturity, reinsurance receivables, net investments in leases and loan commitments). The model requires an entity to estimate lifetime credit losses related to such financial assets and exposures based on relevant information about past events, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The standard also modifies the current other-than-temporary impairment standard for available-for-sale debt securities to require the use of an allowance rather than a direct write down of the investment, and replaces existing standard for purchased credit deteriorated loans and debt securities. January 1, 2020 using the modified retrospective method which will include a cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. However, prospective application is required for purchased credit deteriorated assets previously accounted for under ASU 310-30 and for debt securities for which an other-than-temporary-impairment was recognized prior to the date of adoption. Early adoption is permitted beginning January 1, 2019. The Company is continuing to develop its expected credit loss models and related systems, processes and controls for assets held on the Consolidated Statement of Financial Position at amortized cost, the most significant of which are the commercial mortgage and other loans. The allowance for credit losses will likely increase when the ASU is adopted to cover expected credit losses over the lifetime of the commercial mortgage and other loans, incorporating reasonable and supportable forecasts and expected changes in future economic conditions. The extent of the impact of adoption of this ASU on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements will depend on various factors including the economic environment and the size and type of the commercial mortgage and other loans held on the date of adoption.

Investments

Investments	6 Months Ended
	Jun. 30, 2019
Investments [Abstract]
Investments	3. INVESTMENTS Fixed Maturity Securities The following tables set forth the composition of fixed maturity securities (excluding investments classified as trading), as of the dates indicated: June 30, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI in AOCI(3) (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 79,486 $ 3,116 $ 0 $ 82,602 $ 0 Obligations of U.S. states and their political subdivisions 607,413 46,606 0 654,019 0 Foreign government bonds 210,007 18,321 14 228,314 0 U.S. public corporate securities 2,046,091 188,116 5,626 2,228,581 0 U.S. private corporate securities 895,094 37,967 5,825 927,236 0 Foreign public corporate securities 290,982 20,330 1,955 309,357 0 Foreign private corporate securities 904,665 36,202 22,921 917,946 0 Asset-backed securities(1) 139,728 1,481 287 140,922 (79 ) Commercial mortgage-backed securities 366,856 14,736 10 381,582 0 Residential mortgage-backed securities(2) 83,371 2,531 70 85,832 (152 ) Total fixed maturities, available-for-sale $ 5,623,693 $ 369,406 $ 36,708 $ 5,956,391 $ (231 ) (1) Includes credit-tranched securities collateralized by loan obligations, sub-prime mortgages, auto loans, education loans and other asset types. (2) Includes publicly-traded agency pass-through securities and collateralized mortgage obligations. (3) Represents the amount of unrealized losses remaining in AOCI, from the impairment measurement date. Amount excludes $0.7 million of net unrealized gains on impaired available-for-sale securities relating to changes in the value of such securities subsequent to the impairment measurement date. December 31, 2018 Amortized Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI in AOCI(3) (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 75,049 $ 2,427 $ 6 $ 77,470 $ 0 Obligations of U.S. states and their political subdivisions 609,955 15,154 2,351 622,758 0 Foreign government bonds 208,009 2,137 8,199 201,947 0 U.S. public corporate securities 1,739,860 46,166 54,401 1,731,625 0 U.S. private corporate securities 890,748 11,181 18,591 883,338 0 Foreign public corporate securities 270,428 3,746 12,151 262,023 0 Foreign private corporate securities 857,604 9,797 40,022 827,379 0 Asset-backed securities(1) 156,818 1,528 750 157,596 (122 ) Commercial mortgage-backed securities 347,570 3,353 4,527 346,396 0 Residential mortgage-backed securities(2) 88,862 1,268 1,067 89,063 (177 ) Total fixed maturities, available-for-sale $ 5,244,903 $ 96,757 $ 142,065 $ 5,199,595 $ (299 ) (1) Includes credit-tranched securities collateralized by loan obligations, sub-prime mortgages, auto loans, credit cards, education loans and other asset types. (2) Includes publicly-traded agency pass-through securities and collateralized mortgage obligations. (3) Represents the amount of unrealized losses remaining in AOCI, from the impairment measurement date. Amount excludes $0.4 million of net unrealized losses on impaired available-for-sale securities relating to changes in the value of such securities subsequent to the impairment measurement date. The following tables set forth the fair value and gross unrealized losses aggregated by investment category and length of time that individual fixed maturity securities had been in a continuous unrealized loss position, as of the dates indicated: June 30, 2019 Less Than Twelve Months Twelve Months or More Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 Obligations of U.S. states and their political subdivisions 0 0 0 0 0 0 Foreign government bonds 0 0 8,511 14 8,511 14 U.S. public corporate securities 9,171 69 140,380 5,557 149,551 5,626 U.S. private corporate securities 24,292 3,547 54,624 2,278 78,916 5,825 Foreign public corporate securities 815 0 33,148 1,955 33,963 1,955 Foreign private corporate securities 80,817 1,041 184,542 21,880 265,359 22,921 Asset-backed securities 75,417 233 15,424 54 90,841 287 Commercial mortgage-backed securities 0 0 2,961 10 2,961 10 Residential mortgage-backed securities 0 0 7,947 70 7,947 70 Total fixed maturities, available-for-sale $ 190,512 $ 4,890 $ 447,537 $ 31,818 $ 638,049 $ 36,708 December 31, 2018 Less Than Twelve Months Twelve Months or More Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 0 $ 630 $ 6 $ 630 $ 6 Obligations of U.S. states and their political subdivisions 124,776 1,571 31,215 780 155,991 2,351 Foreign government bonds 77,055 3,184 59,700 5,015 136,755 8,199 U.S. public corporate securities 784,916 37,635 213,147 16,766 998,063 54,401 U.S. private corporate securities 263,934 9,159 287,031 9,432 550,965 18,591 Foreign public corporate securities 124,764 6,286 72,725 5,865 197,489 12,151 Foreign private corporate securities 424,921 22,605 127,201 17,417 552,122 40,022 Asset-backed securities 112,527 650 6,523 100 119,050 750 Commercial mortgage-backed securities 49,616 434 116,786 4,093 166,402 4,527 Residential mortgage-backed securities 34,249 240 32,432 827 66,681 1,067 Total fixed maturities, available-for-sale $ 1,996,758 $ 81,764 $ 947,390 $ 60,301 $ 2,944,148 $ 142,065 As of June 30, 2019 and December 31, 2018 , the gross unrealized losses on fixed maturity securities were composed of $23.9 million and $121.3 million , respectively, related to “1” highest quality or “2” high quality securities based on the National Association of Insurance Commissioners (“NAIC”) or equivalent rating and $12.8 million and $20.8 million , respectively, related to other than high or highest quality securities based on NAIC or equivalent rating. As of June 30, 2019 , the $31.8 million of gross unrealized losses of twelve months or more were concentrated in the Company’s corporate securities within the finance , energy and consumer non-cyclical sectors. As of December 31, 2018 , the $60.3 million of gross unrealized losses of twelve months or more were concentrated in the Company's corporate securities within the finance , energy and consumer non-cyclical sectors. In accordance with its policy described in Note 2 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , the Company concluded that an adjustment to earnings for OTTI for these fixed maturity securities was not warranted at either June 30, 2019 or December 31, 2018 . These conclusions were based on a detailed analysis of the underlying credit and cash flows on each security. Gross unrealized losses are primarily attributable to general credit spread widening, increases in interest rates and foreign currency exchange rate movements. As of June 30, 2019 , the Company did not intend to sell these securities, and it was not more likely than not that the Company would be required to sell these securities before the anticipated recovery of the remaining amortized cost basis. The following table sets forth the amortized cost and fair value of fixed maturities by contractual maturities, as of the date indicated: June 30, 2019 Amortized Cost Fair Value (in thousands) Fixed maturities, available-for-sale: Due in one year or less $ 162,744 $ 164,151 Due after one year through five years 701,515 707,518 Due after five years through ten years 1,005,349 1,046,082 Due after ten years 3,164,130 3,430,304 Asset-backed securities 139,728 140,922 Commercial mortgage-backed securities 366,856 381,582 Residential mortgage-backed securities 83,371 85,832 Total fixed maturities, available-for-sale $ 5,623,693 $ 5,956,391 Actual maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations. Asset-backed, commercial mortgage-backed and residential mortgage-backed securities are shown separately in the table above, as they do not have a single maturity date. The following table sets forth the sources of fixed maturity proceeds and related investment gains (losses), as well as losses on impairments of fixed maturities, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Fixed maturities, available-for-sale: Proceeds from sales(1) $ 28,231 $ 117,235 $ 53,018 $ 134,087 Proceeds from maturities/prepayments 75,554 85,808 128,429 140,118 Gross investment gains from sales and maturities (1,384 ) (30 ) (435 ) 114 Gross investment losses from sales and maturities (1,105 ) (3,231 ) (3,075 ) (3,590 ) OTTI recognized in earnings(2) 0 (57 ) (3,163 ) (651 ) (1) Includes $2.1 million and $26.2 million of non-cash related proceeds due to the timing of trade settlements for the six months ended June 30, 2019 and 2018 , respectively. (2) Excludes the portion of OTTI amounts remaining in OCI, representing any difference between the fair value of the impaired debt security and the net present value of its projected future cash flows at the time of the impairment. The following table sets forth a rollforward of pre-tax amounts remaining in OCI related to fixed maturity securities with credit loss impairments recognized in earnings, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Credit loss impairments: Balance, beginning of period $ 3,610 $ 4,344 $ 1,291 $ 4,374 New credit loss impairments 0 0 3,022 0 Increases due to the passage of time on previously recorded credit losses 20 10 30 47 Reductions for securities which matured, paid down, prepaid or were sold during the period (33 ) (1,918 ) (626 ) (1,960 ) Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected (11 ) (454 ) (131 ) (479 ) Balance, end of period $ 3,586 $ 1,982 $ 3,586 $ 1,982 Equity Securities The net change in unrealized gains (losses) from equity securities still held at period end, recorded within “Other income,” was $(0.5) million and $(0.7) million during the three months ended June 30, 2019 and 2018 , respectively, and $0.2 million and $(1.9) million during the six months ended June 30, 2019 and 2018 , respectively. Commercial Mortgage and Other Loans The following table sets forth the composition of “Commercial mortgage and other loans,” as of the dates indicated: June 30, 2019 December 31, 2018 Amount (in thousands) % of Total Amount (in thousands) % of Total Commercial mortgage and agricultural property loans by property type: Apartments/Multi-Family $ 355,719 29.0 % $ 362,811 29.9 % Hospitality 15,853 1.3 16,083 1.3 Industrial 286,521 23.2 263,999 21.8 Office 197,159 16.1 187,450 15.5 Other 129,617 10.6 131,961 10.9 Retail 189,040 15.4 193,473 16.0 Total commercial mortgage loans 1,173,909 95.6 1,155,777 95.4 Agricultural property loans 53,718 4.4 55,438 4.6 Total commercial mortgage and agricultural property loans by property type 1,227,627 100.0 % 1,211,215 100.0 % Allowance for credit losses (1,959 ) (2,065 ) Total commercial mortgage and other loans $ 1,225,668 $ 1,209,150 As of June 30, 2019 , the commercial mortgage and agricultural property loans were secured by properties geographically dispersed throughout the United States (with the largest concentrations in California ( 21% ), Texas ( 14% ) and New York ( 7% )) and included loans secured by properties in Europe ( 6% ), Australia ( 4% ) and Mexico ( 2% ). The following table sets forth the activity in the allowance for credit losses for commercial mortgage and other loans, as of the dates indicated: Commercial Mortgage Loans Agricultural Property Loans Total (in thousands) Balance at December 31, 2017 $ 1,728 $ 66 $ 1,794 Addition to (release of) allowance for credit losses 298 (27 ) 271 Charge-offs, net of recoveries 0 0 0 Balance at December 31, 2018 2,026 39 2,065 Addition to (release of) allowance for credit losses (107 ) 1 (106 ) Charge-offs, net of recoveries 0 0 0 Balance at June 30, 2019 $ 1,919 $ 40 $ 1,959 The following tables set forth the allowance for credit losses and the recorded investment in commercial mortgage and other loans, as of the dates indicated: June 30, 2019 Commercial Mortgage Loans Agricultural Property Loans Total (in thousands) Allowance for credit losses: Individually evaluated for impairment $ 0 $ 0 $ 0 Collectively evaluated for impairment 1,919 40 1,959 Total ending balance(1) $ 1,919 $ 40 $ 1,959 Recorded investment(2): Individually evaluated for impairment $ 0 $ 0 $ 0 Collectively evaluated for impairment 1,173,909 53,718 1,227,627 Total ending balance(1) $ 1,173,909 $ 53,718 $ 1,227,627 (1) As of June 30, 2019 , there were no loans acquired with deteriorated credit quality. (2) Recorded investment reflects the carrying value gross of related allowance. December 31, 2018 Commercial Mortgage Loans Agricultural Property Loans Total (in thousands) Allowance for credit losses: Individually evaluated for impairment $ 0 $ 0 $ 0 Collectively evaluated for impairment 2,026 39 2,065 Total ending balance(1) $ 2,026 $ 39 $ 2,065 Recorded investment(2): Individually evaluated for impairment $ 0 $ 816 $ 816 Collectively evaluated for impairment 1,155,777 54,622 1,210,399 Total ending balance(1) $ 1,155,777 $ 55,438 $ 1,211,215 (1) As of December 31, 2018 , there were no loans acquired with deteriorated credit quality. (2) Recorded investment reflects the carrying value gross of related allowance. The following tables set forth certain key credit quality indicators for commercial mortgage and agricultural property loans based upon the recorded investment gross of allowance for credit losses, as of the dates indicated: June 30, 2019 Debt Service Coverage Ratio ≥ 1.2X 1.0X to < 1.2X < 1.0X Total (in thousands) Loan-to-Value Ratio: 0%-59.99% $ 714,155 $ 13,715 $ 815 $ 728,685 60%-69.99% 324,198 17,070 0 341,268 70%-79.99% 134,531 22,916 0 157,447 80% or greater 0 0 227 227 Total commercial mortgage and agricultural property loans $ 1,172,884 $ 53,701 $ 1,042 $ 1,227,627 December 31, 2018 Debt Service Coverage Ratio ≥ 1.2X 1.0X to < 1.2X < 1.0X Total (in thousands) Loan-to-Value Ratio: 0%-59.99% $ 696,507 $ 12,771 $ 80 $ 709,358 60%-69.99% 321,586 18,525 0 340,111 70%-79.99% 105,727 27,790 0 133,517 80% or greater 28,000 229 0 28,229 Total commercial mortgage and agricultural property loans $ 1,151,820 $ 59,315 $ 80 $ 1,211,215 The following tables set forth an aging of past due commercial mortgage and other loans based upon the recorded investment gross of allowance for credit losses, as well as the amount of commercial mortgage and other loans on non-accrual status, as of the dates indicated: June 30, 2019 Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due(1) Total Loans Non-Accrual Status(2) (in thousands) Commercial mortgage loans $ 1,173,909 $ 0 $ 0 $ 0 $ 1,173,909 $ 0 Agricultural property loans 53,718 0 0 0 53,718 0 Total $ 1,227,627 $ 0 $ 0 $ 0 $ 1,227,627 $ 0 (1) As of June 30, 2019 , there were no loans in this category accruing interest. (2) For additional information regarding the Company’s policies for accruing interest on loans, see Note 2 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . December 31, 2018 Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due(1) Total Loans Non-Accrual Status(2) (in thousands) Commercial mortgage loans $ 1,155,777 $ 0 $ 0 $ 0 $ 1,155,777 $ 0 Agricultural property loans 55,438 0 0 0 55,438 0 Total $ 1,211,215 $ 0 $ 0 $ 0 $ 1,211,215 $ 0 (1) As of December 31, 2018 , there were no loans in this category accruing interest. (2) For additional information regarding the Company’s policies for accruing interest on loans, see Note 2 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . For the three and six months ended June 30, 2019 and 2018 , there were no commercial mortgage and other loans acquired, other than those through direct origination. For the three months ended June 30, 2019 , there were no commercial mortgage loans sold, and for the six months ended June 30, 2019 , there were $5 million of commercial mortgage and other loans sold. For the three and six months ended June 30, 2018 , there were no commercial mortgage and other loans sold. Other Invested Assets The following table sets forth the composition of “Other invested assets,” as of the dates indicated: June 30, 2019 December 31, 2018 (in thousands) Company’s investment in separate accounts $ 43,497 $ 40,126 LPs/LLCs: Equity method: Private equity 183,095 149,164 Hedge funds 61,090 57,171 Real estate-related 19,753 10,251 Subtotal equity method 263,938 216,586 Fair value: Private equity 57,156 60,118 Hedge funds 778 762 Real estate-related 11,290 9,024 Subtotal fair value 69,224 69,904 Total LPs/LLCs 333,162 286,490 Derivative instruments 18,292 50,813 Total other invested assets $ 394,951 $ 377,429 Net Investment Income The following table sets forth “Net investment income” by investment type, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Fixed maturities, available-for-sale $ 59,370 $ 55,195 $ 115,636 $ 108,455 Fixed maturities, trading 326 272 634 538 Equity securities, at fair value 221 221 442 442 Commercial mortgage and other loans 13,435 12,303 25,926 24,708 Policy loans 16,766 16,329 32,965 32,233 Short-term investments and cash equivalents 1,839 114 4,150 437 Other invested assets 18,060 1,743 27,971 1,858 Gross investment income 110,017 86,177 207,724 168,671 Less: investment expenses (4,455 ) (4,528 ) (8,912 ) (9,107 ) Net investment income $ 105,562 $ 81,649 $ 198,812 $ 159,564 Realized Investment Gains (Losses), Net The following table sets forth “Realized investment gains (losses), net” by investment type, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Fixed maturities(1) $ (2,489 ) $ (3,318 ) $ (6,673 ) $ (4,127 ) Commercial mortgage and other loans 99 (125 ) 106 6 LPs/LLCs 0 2 12 849 Derivatives (49,846 ) (33,448 ) (94,323 ) (82,641 ) Short-term investments and cash equivalents (14 ) (1 ) (7 ) (19 ) Realized investment gains (losses), net $ (52,250 ) $ (36,890 ) $ (100,885 ) $ (85,932 ) (1) Includes fixed maturity securities classified as available-for-sale and excludes fixed maturity securities classified as trading. Net Unrealized Gains (Losses) on Investments within AOCI The following table sets forth net unrealized gains (losses) on investments, as of the dates indicated: June 30, 2019 December 31, 2018 (in thousands) Fixed maturity securities, available-for-sale—with OTTI $ 535 $ (689 ) Fixed maturity securities, available-for-sale—all other 332,163 (44,619 ) Derivatives designated as cash flow hedges(1) 28,757 22,122 Affiliated notes 4,025 810 Other investments 5,067 5,055 Net unrealized gains (losses) on investments $ 370,547 $ (17,321 ) (1) For more information on cash flow hedges, see Note 4 . Repurchase Agreements and Securities Lending In the normal course of business, the Company sells securities under agreements to repurchase and enters into securities lending transactions. As of June 30, 2019 and December 31, 2018 , the Company had no repurchase agreements. The following table sets forth the composition of “Cash collateral for loaned securities,” which represents the liability to return cash collateral received for the following types of securities loaned, as of the dates indicated: June 30, 2019 December 31, 2018 Remaining Contractual Maturities of the Agreements Remaining Contractual Maturities of the Agreements Overnight & Continuous Up to 30 Days Total Overnight & Continuous Up to 30 Days Total (in thousands) U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 0 $ 0 $ 8,169 $ 0 $ 8,169 U.S. public corporate securities 4,636 0 4,636 628 0 628 Foreign public corporate securities 2,447 0 2,447 2,266 0 2,266 Total cash collateral for loaned securities(1) $ 7,083 $ 0 $ 7,083 $ 11,063 $ 0 $ 11,063 (1) The Company did not have any agreements with remaining contractual maturities of thirty days or greater, as of the dates indicated.

Derivative Instruments

Derivative Instruments	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	DERIVATIVE INSTRUMENTS Types of Derivative Instruments and Derivative Strategies The Company utilizes various derivative instruments and strategies to manage its risk. Commonly used derivative instruments include, but are not necessarily limited to: • Interest rate contracts: futures, swaps, options, swaptions, caps and floors • Equity contracts: futures, options and total return swaps • Foreign exchange contracts: futures, options, forwards and swaps • Credit contracts: single and index reference credit default swaps Other types of financial contracts that the Company accounts for as derivatives include: • Embedded derivatives For detailed information on these contracts and the related strategies, see Note 4 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . Primary Risks Managed by Derivatives The table below provides a summary of the gross notional amount and fair value of derivative contracts by the primary underlying risks, excluding embedded derivatives and associated reinsurance recoverables. Many derivative instruments contain multiple underlying risks. The fair value amounts below represent the value of derivative contracts prior to taking into account the netting effects of master netting agreements, cash collateral, and NPR. June 30, 2019 December 31, 2018 Primary Underlying Risk/Instrument Type Fair Value Fair Value Gross Notional Assets Liabilities Gross Notional Assets Liabilities (in thousands) Derivatives Designated as Hedge Accounting Instruments: Currency/Interest Rate Foreign Currency Swaps $ 751,074 $ 43,962 $ (15,484 ) $ 719,476 $ 38,333 $ (16,638 ) Total Derivatives Designated as Hedge Accounting Instruments $ 751,074 $ 43,962 $ (15,484 ) $ 719,476 $ 38,333 $ (16,638 ) Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate Interest Rate Swaps $ 596,925 $ 31,580 $ (4,511 ) $ 246,925 $ 15,665 $ (3,174 ) Foreign Currency Foreign Currency Forwards 27,935 262 (100 ) 23,043 277 (20 ) Credit Credit Default Swaps 0 0 0 756 0 (9 ) Currency/Interest Rate Foreign Currency Swaps 128,088 7,836 (1,244 ) 98,363 6,303 (2,109 ) Equity Equity Options 2,306,848 98,700 (32,489 ) 1,981,693 17,312 (4,912 ) Total Derivatives Not Qualifying as Hedge Accounting Instruments $ 3,059,796 $ 138,378 $ (38,344 ) $ 2,350,780 $ 39,557 $ (10,224 ) Total Derivatives(1)(2) $ 3,810,870 $ 182,340 $ (53,828 ) $ 3,070,256 $ 77,890 $ (26,862 ) (1) Excludes embedded derivatives and associated reinsurance recoverables which contain multiple underlying risks. (2) Recorded in “Other invested assets” and “Other liabilities” on the Unaudited Interim Consolidated Statements of Financial Position. The fair value of the embedded derivatives, included in "Future policy benefits," was a net liability of $8,477 million and $5,589 million as of June 30, 2019 and December 31, 2018 , respectively. The fair value of the related reinsurance recoverables, included in "Reinsurance recoverables" or "Other liabilities," was a net asset of $8,486 million and $5,600 million as of June 30, 2019 and December 31, 2018 , respectively. Of these reinsurance recoverables, the fair value related to the living benefits guarantee from Prudential Annuities Life Assurance Corporation ("PALAC") and Prudential Insurance was a net asset of $8,398 million and $5,585 million and the fair value related to the Prudential Premier® Retirement Variable Annuity with Highest Daily Lifetime Income ("HDI") v.3.0 from Union Hamilton Reinsurance, Ltd. ("Union Hamilton"), an external counterparty, was a net asset of $88 million and $15 million as of June 30, 2019 and December 31, 2018 , respectively. See Note 6 for additional information on these reinsurance agreements. The fair value of the embedded derivatives, included in "Policyholders' account balances," was a net liability of $787 million and $13 million as of June 30, 2019 and December 31, 2018 , respectively. There were no related reinsurance recoverables at each respective period. Offsetting Assets and Liabilities The following table presents recognized derivative instruments (excluding embedded derivatives and associated reinsurance recoverables), and repurchase and reverse repurchase agreements that are offset in the Unaudited Interim Consolidated Statements of Financial Position, and/or are subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset in the Unaudited Interim Consolidated Statements of Financial Position. June 30, 2019 Gross Amounts of Recognized Financial Instruments Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts Financial Instruments/ Collateral (1) Net Amount (in thousands) Offsetting of Financial Assets: Derivatives(1) $ 182,336 $ (163,984 ) $ 18,352 $ (18,352 ) $ 0 Securities purchased under agreements to resell 16,000 0 16,000 (16,000 ) 0 Total Assets $ 198,336 $ (163,984 ) $ 34,352 $ (34,352 ) $ 0 Offsetting of Financial Liabilities: Derivatives(1) $ 53,828 $ (53,828 ) $ 0 $ 0 $ 0 Securities sold under agreements to repurchase 0 0 0 0 0 Total Liabilities $ 53,828 $ (53,828 ) $ 0 $ 0 $ 0 December 31, 2018 Gross Amounts of Recognized Financial Instruments Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts Presented in the Consolidated Statements of Financial Position Financial Net Amount (in thousands) Offsetting of Financial Assets: Derivatives(1) $ 77,887 $ (27,078 ) $ 50,809 $ (7,307 ) $ 43,502 Securities purchased under agreements to resell 143,000 0 143,000 (143,000 ) 0 Total Assets $ 220,887 $ (27,078 ) $ 193,809 $ (150,307 ) $ 43,502 Offsetting of Financial Liabilities: Derivatives(1) $ 26,862 $ (26,862 ) $ 0 $ 0 $ 0 Securities sold under agreements to repurchase 0 0 0 0 0 Total Liabilities $ 26,862 $ (26,862 ) $ 0 $ 0 $ 0 (1) Amounts exclude the excess of collateral received/pledged from/to the counterparty. For information regarding the rights of offset associated with the derivative assets and liabilities in the table above see “Credit Risk” below and Note 9 . For securities purchased under agreements to resell and securities sold under agreements to repurchase, the Company monitors the value of the securities and maintains collateral, as appropriate, to protect against credit exposure. Where the Company has entered into repurchase and resale agreements with the same counterparty, in the event of default, the Company would generally be permitted to exercise rights of offset. For additional information on the Company’s accounting policy for securities repurchase and resale agreements, see Note 2 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . Cash Flow Hedges The primary derivative instruments used by the Company in its cash flow hedge accounting relationships are currency swaps. These instruments are only designated for hedge accounting in instances where the appropriate criteria are met. The Company does not use futures, options, credit, equity or embedded derivatives in any of its cash flow hedge accounting relationships. The following tables provide the financial statement classification and impact of derivatives used in qualifying and non-qualifying hedge relationships, excluding the offset of the hedged item in an effective hedge relationship. Three Months Ended June 30, 2019 Realized Net Other AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ (88 ) $ 2,211 $ 1,482 $ 13,316 Total cash flow hedges (88 ) 2,211 1,482 13,316 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate 7,682 0 0 0 Currency 343 0 0 0 Currency/Interest Rate 1,673 0 4 0 Credit 0 0 0 0 Equity 12,666 0 0 0 Embedded Derivatives (72,122 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (49,758 ) 0 4 0 Total $ (49,846 ) $ 2,211 $ 1,486 $ 13,316 Six Months Ended June 30, 2019 Realized Net Other AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ (248 ) $ 4,280 $ (34 ) $ 6,662 Total cash flow hedges (248 ) 4,280 (34 ) 6,662 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate 15,297 0 0 0 Currency 323 0 0 0 Currency/Interest Rate 3,103 0 5 0 Credit (1 ) 0 0 0 Equity 41,529 0 0 0 Embedded Derivatives (154,326 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (94,075 ) 0 5 0 Total $ (94,323 ) $ 4,280 $ (29 ) $ 6,662 Three Months Ended June 30, 2018(2) Realized Investment Gains (Losses) Net Investment Income Other Income AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ 83 $ 1,611 $ 5,710 $ 31,519 Total cash flow hedges 83 1,611 5,710 31,519 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate (3,126 ) 0 0 0 Currency 1,221 0 0 0 Currency/Interest Rate 4,844 0 38 0 Credit 0 0 0 0 Equity 7,581 0 0 0 Embedded Derivatives (44,051 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (33,531 ) 0 38 0 Total $ (33,448 ) $ 1,611 $ 5,748 $ 31,519 Six Months Ended June 30, 2018(2) Realized Investment Gains (Losses) Net Investment Income Other Income AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ (433 ) $ 3,149 $ 5,046 $ 8,657 Total cash flow hedges (433 ) 3,149 5,046 8,657 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate (12,526 ) 0 0 0 Currency 665 0 0 0 Currency/Interest Rate 1,509 0 15 0 Credit (2 ) 0 0 0 Equity 2,824 0 0 0 Embedded Derivatives (74,678 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (82,208 ) 0 15 0 Total $ (82,641 ) $ 3,149 $ 5,061 $ 8,657 (1) Net change in AOCI. (2) Prior period amounts have been updated to conform to current period presentation. Presented below is a rollforward of current period cash flow hedges in AOCI before taxes: (in thousands) Balance, December 31, 2018 $ 22,122 Cumulative-effect adjustment from the adoption of ASU 2017-12(1) (27 ) Amount recorded in AOCI Currency/Interest Rate 10,661 Total amount recorded in AOCI 10,661 Amount reclassified from AOCI to income Currency/Interest Rate (3,999 ) Total amount reclassified from AOCI to income (3,999 ) Balance, June 30, 2019 $ 28,757 (1) See Note 2 for details. The changes in fair value of cash flow hedges are deferred in AOCI and are included in "Net unrealized investment gains (losses)" in the Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss); these amounts are then reclassified to earnings when the hedged item affects earnings. Using June 30, 2019 values, it is estimated that a pre-tax gain of $8 million is expected to be reclassified from AOCI to earnings during the subsequent twelve months ending June 30, 2020 , offset by amounts pertaining to the hedged items. The exposures the Company is hedging with these qualifying cash flow hedges include the variability of the payment or receipt of interest or foreign currency amounts on existing financial instruments. There were no material amounts reclassified from AOCI into earnings relating to instances in which the Company discontinued cash flow hedge accounting because the forecasted transaction did not occur by the anticipated date or within the additional time period permitted by the authoritative guidance for the accounting for derivatives and hedging. Credit Derivatives The Company has no exposure from credit derivative positions where it has written credit protection as of June 30, 2019 and December 31, 2018 . The Company has purchased credit protection using credit derivatives in order to hedge specific credit exposures in the Company’s investment portfolio. The Company has outstanding notional amounts of $0.0 million and $1 million reported as of June 30, 2019 and December 31, 2018 , respectively with a fair value of $0.0 million for both periods. Credit Risk The Company is exposed to credit-related losses in the event of non-performance by counterparty to financial derivative transactions with a positive fair value. The Company manages credit risk by entering into derivative transactions with its affiliate, Prudential Global Funding LLC (“PGF”), related to its over-the-counter ("OTC") derivatives. PGF, in turn, manages its credit risk by: (i) entering into derivative transactions with highly rated major international financial institutions and other creditworthy counterparties governed by master netting agreement, as applicable; (ii) trading through central clearing and OTC parties; (iii) obtaining collateral, such as cash and securities, when appropriate; and (iv) setting limits on single-party credit exposures which are subject to periodic management review. Substantially all of the Company’s derivative agreements have zero thresholds which require daily full collateralization by the party in a liability position.

Fair Value of Assets and Liabil

Fair Value of Assets and Liabilities	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	FAIR VALUE OF ASSETS AND LIABILITIES Fair Value Measurement - Fair value represents the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The authoritative fair value guidance establishes a framework for measuring fair value that includes a hierarchy used to classify the inputs used in measuring fair value. The level in the fair value hierarchy within which the fair value measurement falls is determined based on the lowest level input that is significant to the fair value measurement. The levels of the fair value hierarchy are as follows: Level 1 – Fair value is based on unadjusted quoted prices in active markets that are accessible to the Company for identical assets or liabilities. Level 2 – Fair value is based on significant inputs, other than quoted prices included in Level 1, that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the asset or liability through corroboration with observable market data. Level 2 inputs include quoted market prices in active markets for similar assets and liabilities, quoted market prices in markets that are not active for identical or similar assets or liabilities, and other market observable inputs. Level 3 – Fair value is based on at least one significant unobservable input for the asset or liability. The assets and liabilities in this category may require significant judgment or estimation in determining the fair value. For a discussion of the Company's valuation methodologies for assets and liabilities measured at fair value and the fair value hierarchy, see Note 5 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2018 . Assets and Liabilities by Hierarchy Level – The tables below present the balances of assets and liabilities reported at fair value on a recurring basis, as of the dates indicated. As of June 30, 2019 Level 1 Level 2 Level 3 Netting(1) Total (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 48,210 $ 34,392 $ 0 $ 82,602 Obligations of U.S. states and their political subdivisions 0 654,019 0 0 654,019 Foreign government bonds 0 228,149 165 0 228,314 U.S. corporate public securities 0 2,228,578 3 0 2,228,581 U.S. corporate private securities 0 885,288 41,948 0 927,236 Foreign corporate public securities 0 309,136 221 0 309,357 Foreign corporate private securities 0 906,104 11,842 0 917,946 Asset-backed securities(2) 0 138,297 2,625 0 140,922 Commercial mortgage-backed securities 0 381,582 0 0 381,582 Residential mortgage-backed securities 0 84,160 1,672 0 85,832 Subtotal 0 5,863,523 92,868 0 5,956,391 Fixed maturities, trading 0 48,812 605 0 49,417 Equity securities 116 553 17,105 0 17,774 Short-term investments 0 0 94 0 94 Cash equivalents 0 356,634 0 0 356,634 Other invested assets(3) 0 182,336 4 (163,984 ) 18,356 Reinsurance recoverables 0 0 8,485,905 0 8,485,905 Receivables from parent and affiliates 0 121,567 6,295 0 127,862 Subtotal excluding separate account assets 116 6,573,425 8,602,876 (163,984 ) 15,012,433 Separate account assets(4)(5) 0 128,180,358 0 0 128,180,358 Total assets $ 116 $ 134,753,783 $ 8,602,876 $ (163,984 ) $ 143,192,791 Future policy benefits(6) $ 0 $ 0 $ 8,476,541 $ 0 $ 8,476,541 Policyholders' account balances 0 0 786,969 0 786,969 Payables to parent and affiliates 0 53,828 0 (53,828 ) 0 Total liabilities $ 0 $ 53,828 $ 9,263,510 $ (53,828 ) $ 9,263,510 As of December 31, 2018 Level 1 Level 2 Level 3 Netting(1) Total (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 47,654 $ 29,816 $ 0 $ 77,470 Obligations of U.S. states and their political subdivisions 0 622,758 0 0 622,758 Foreign government bonds 0 201,947 0 0 201,947 U.S. corporate public securities 0 1,731,623 2 0 1,731,625 U.S. corporate private securities 0 838,497 44,841 0 883,338 Foreign corporate public securities 0 262,023 0 0 262,023 Foreign corporate private securities 0 815,634 11,745 0 827,379 Asset-backed securities(2) 0 151,040 6,556 0 157,596 Commercial mortgage-backed securities 0 346,396 0 0 346,396 Residential mortgage-backed securities 0 89,063 0 0 89,063 Subtotal 0 5,106,635 92,960 0 5,199,595 Fixed maturities, trading 0 41,627 0 0 41,627 Equity securities 131 20,794 15,997 0 36,922 Short-term investments 0 0 0 0 0 Cash equivalents 69,903 147,043 0 0 216,946 Other invested assets(3) 0 77,886 4 (27,078 ) 50,812 Reinsurance recoverables 0 0 5,600,008 0 5,600,008 Receivables from parent and affiliates 0 125,381 9,261 0 134,642 Subtotal excluding separate account assets 70,034 5,519,366 5,718,230 (27,078 ) 11,280,552 Separate account assets(4)(5) 0 114,947,872 0 0 114,947,872 Total assets $ 70,034 $ 120,467,238 $ 5,718,230 $ (27,078 ) $ 126,228,424 Future policy benefits(6) $ 0 $ 0 $ 5,588,840 $ 0 $ 5,588,840 Policyholders' account balances 0 0 13,015 0 13,015 Payables to parent and affiliates 0 26,862 0 (26,862 ) 0 Total liabilities $ 0 $ 26,862 $ 5,601,855 $ (26,862 ) $ 5,601,855 (1) “Netting” amounts represent cash collateral of $110.2 million and $0.2 million as of June 30, 2019 and December 31, 2018 , respectively, and the impact of offsetting asset and liability positions held with the same counterparty, subject to master netting arrangements. (2) Includes credit-tranched securities collateralized by syndicated bank loans, sub-prime mortgages, auto loans, credit cards, education loans and other asset types. (3) Other invested assets excluded from the fair value hierarchy include certain hedge funds, private equity funds and other funds for which fair value is measured at net asset value ("NAV") per share (or its equivalent) as a practical expedient. As of June 30, 2019 and December 31, 2018 , the fair values of such investments were $69 million and $70 million , respectively. (4) Separate account assets included in the fair value hierarchy exclude investments in entities that calculate NAV per share (or its equivalent) as a practical expedient. Such investments excluded from the fair value hierarchy include investments in real estate, hedge funds and a corporate owned life insurance fund, for which fair value is measured at NAV per share (or its equivalent). As of June 30, 2019 and December 31, 2018 , the fair value of such investments was $4,552 million and $4,130 million , respectively. (5) Separate account assets represent segregated funds that are invested for certain customers. Investment risks associated with market value changes are borne by the customers, except to the extent of minimum guarantees made by the Company with respect to certain accounts. Separate account liabilities are not included in the above table as they are reported at contract value and not fair value in the Company's Unaudited Interim Consolidated Statements of Financial Position. (6) As of June 30, 2019 , the net embedded derivative liability position of $8,477 million includes $519 million of embedded derivatives in an asset position and $8,996 million of embedded derivatives in a liability position. As of December 31, 2018 , the net embedded derivative liability position of $5,589 million includes $633 million of embedded derivatives in an asset position and $6,222 million of embedded derivatives in a liability position. Quantitative Information Regarding Internally Priced Level 3 Assets and Liabilities – The tables below present quantitative information on significant internally-priced Level 3 assets and liabilities. As of June 30, 2019 Fair Value Valuation Techniques Unobservable Inputs Minimum Maximum Weighted Average Impact of Increase in Input on Fair Value(1) (in thousands) Assets: Corporate securities(2) $ 23,086 Discounted cash flow Discount rate 8.34 % 15.17 % 12.03 % Decrease Market Comparables EBITDA multiples(3) 5.7 X 5.7 X 5.7 X Increase Liquidation Liquidation value 3.98 % 3.98 % 3.98 % Increase Reinsurance recoverables $ 8,485,905 Fair values are determined using the same unobservable inputs as future policy benefits. Liabilities: Future policy benefits(4) $ 8,476,541 Discounted cash flow Lapse rate(6) 1 % 18 % Decrease Spread over LIBOR(7) 0.16 % 1.24 % Decrease Utilization rate(8) 43 % 97 % Increase Withdrawal rate See table footnote (9) below Mortality rate(10) 0 % 15 % Decrease Equity volatility curve 13 % 23 % Increase Policyholders' account balances(5) $ 786,969 Discounted cash flow Lapse rate(6) 1 % 6 % Decrease Spread over LIBOR(7) 0.16 % 1.24 % Decrease Mortality rate(10) 0 % 24 % Decrease Equity volatility curve 10 % 23 % Increase As of December 31, 2018 Fair Value Valuation Techniques Unobservable Inputs Minimum Maximum Weighted Average Impact of Increase in Input on Fair Value(1) (in thousands) Assets: Corporate securities(2) $ 31,503 Discounted cash flow Discount rate 7 % 20 % 10.21 % Decrease Liquidation Liquidation value 40.71 % 40.71 % 40.71 % Increase Reinsurance recoverables $ 5,600,008 Fair values are determined using the same unobservable inputs as future policy benefits. Liabilities: Future policy benefits(4) $ 5,588,840 Discounted cash flow Lapse rate(6) 1 % 13 % Decrease Spread over LIBOR(7) 0.36 % 1.60 % Decrease Utilization rate(8) 50 % 97 % Increase Withdrawal rate See table footnote (9) below Mortality rate(10) 0 % 15 % Decrease Equity volatility curve 18 % 22 % Increase (1) Conversely, the impact of a decrease in input would have the opposite impact on fair value as that presented in the table. (2) Includes assets classified as fixed maturities, available-for-sale and fixed maturities trading. (3) Represents multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"), and are amounts used when the Company has determined that market participants would use such multiples when valuing the investments. (4) Future policy benefits primarily represent general account liabilities for the living benefit features of the Company’s variable annuity contracts which are accounted for as embedded derivatives. Since the valuation methodology for these liabilities uses a range of inputs that vary at the contract level over the cash flow projection period, presenting a range, rather than weighted average, is a more meaningful representation of the unobservable inputs used in the valuation. (5) Policyholders’ account balances primarily represent general account liabilities for the index-linked interest credited on certain of the Company’s life products that are accounted for as embedded derivatives. Since the valuation methodology for these liabilities uses a range of inputs that vary at the contract level over the cash flow projection period, presenting a range, rather than weighted average, is a more meaningful representation of the unobservable inputs used in the valuation. (6) Lapse rates for contracts with living benefit guarantees are adjusted at the contract level based on the in-the-moneyness of the living benefit and reflect other factors, such as the applicability of any surrender charges. Lapse rates are reduced when contracts are more in-the-money. Lapse rates for contracts with index-linked crediting guarantees may be adjusted at the contract level based on the applicability of any surrender charges, product type, and market related factors such as interest rates. Lapse rates are also generally assumed to be lower for the period where surrender charges apply. For any given contract, lapse rates vary throughout the period over which cash flows are projected for the purposes of valuing these embedded derivatives. (7) The spread over the London Inter-Bank Offered Rate ("LIBOR") swap curve represents the premium added to the proxy for the risk-free rate (LIBOR) to reflect the Company's estimates of rates that a market participant would use to value the living benefits in both the accumulation and payout phases and index-linked interest crediting guarantees. This spread includes an estimate of NPR, which is the risk that the obligation will not be fulfilled by the Company. NPR is primarily estimated by utilizing the credit spreads associated with issuing funding agreements, adjusted for any illiquidity risk premium. In order to reflect the financial strength ratings of the Company, credit spreads associated with funding agreements, as opposed to credit spread associated with debt, are utilized in developing this estimate because funding agreements, living benefit guarantees, and index-linked interest crediting guarantees are insurance liabilities and are therefore senior to debt. (8) The utilization rate assumption estimates the percentage of contracts that will utilize the benefit during the contract duration and begin lifetime withdrawals at various time intervals from contract inception. The remaining contractholders are assumed to either begin lifetime withdrawals immediately or never utilize the benefit. Utilization assumptions may vary by product type, tax status and age. The impact of changes in these assumptions is highly dependent on the product type, the age of the contractholder at the time of the sale, and the timing of the first lifetime income withdrawal. Range reflects the utilization rate for the vast majority of business with living benefits. (9) The withdrawal rate assumption estimates the magnitude of annual contractholder withdrawals relative to the maximum allowable amount under the contract. These assumptions vary based on the age of the contractholder, the tax status of the contract and the duration since the contractholder began lifetime withdrawals. As of June 30, 2019 and December 31, 2018 , the minimum withdrawal rate assumption is 78% and the maximum withdrawal rate assumption may be greater than 100% . The fair value of the liability will generally increase the closer the withdrawal rate is to 100% and decrease as the withdrawal rate moves further away from 100%. (10) The range reflects the mortality rates for the vast majority of business with living benefits and other contracts, with policyholders ranging from 45 to 90 years old. While the majority of living benefits have a minimum age requirement, certain other contracts do not have an age restriction. This results in contractholders with mortality rates approaching 0% for certain benefits. Mortality rates vary by product, age, and duration. A mortality improvement assumption is also incorporated into the overall mortality table. Interrelationships Between Unobservable Inputs – In addition to the sensitivities of fair value measurements to changes in each unobservable input in isolation, as reflected in the table above, interrelationships between these inputs may also exist, such that a change in one unobservable input may give rise to a change in another, or multiple, inputs. For the discussion of the relationships between unobservable inputs as well as market factors that may affect the range of inputs used in the valuation of Level 3 assets and liabilities, see Note 5 to the Consolidated Financial Statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2018 . Changes in Level 3 Assets and Liabilities – The following tables describe changes in fair values of Level 3 assets and liabilities as of the dates indicated, as well as the portion of gains or losses included in income attributable to unrealized gains or losses related to those assets and liabilities still held at the end of their respective periods. When a determination is made to classify assets and liabilities within Level 3, the determination is based on significance of the unobservable inputs in the overall fair value measurement. All transfers are based on changes in the observability of the valuation inputs, including the availability of pricing service information that the Company can validate. All transfers are generally reported at the value as of the beginning of the quarter in which transfers occur for any such assets still held at the end of the quarter. Three Months Ended June 30, 2019 Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 32,188 $ 0 $ 2,204 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 34,392 $ 0 Foreign government 164 1 0 0 0 0 0 0 0 165 0 Corporate securities(4) 54,960 234 791 (25 ) 0 (2,584 ) (1 ) 639 0 54,014 0 Structured securities(5) 79,804 42 0 (1 ) 0 (177 ) 0 1,700 (77,071 ) 4,297 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 0 0 751 0 605 (146 ) Equity securities 15,991 1,114 0 0 0 0 0 0 0 17,105 1,114 Other invested assets 4 0 0 0 0 0 0 0 0 4 0 Short-term investments 0 0 463 0 0 (369 ) 0 0 0 94 0 Reinsurance recoverables 6,468,704 1,773,188 244,013 0 0 0 0 0 0 8,485,905 1,833,209 Receivables from parent and affiliates 7,792 82 0 0 0 (1,579 ) 0 0 0 6,295 0 Liabilities: Future policy benefits (6,459,377 ) (1,775,097 ) 0 0 (242,067 ) 0 0 0 0 (8,476,541 ) (1,836,960 ) Policyholders' account balances(6) (53,136 ) (691,927 ) 0 0 (41,906 ) 0 0 0 0 (786,969 ) (691,376 ) Three Months Ended June 30, 2019 Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (665 ) $ 0 $ 678 $ 264 $ 0 $ 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 (146 ) Equity securities 0 1,114 0 0 0 1,114 Other invested assets 0 0 0 0 0 0 Short-term investments 0 0 0 0 0 0 Reinsurance recoverables 1,773,188 0 0 0 1,833,209 0 Receivables from parent and affiliates 0 0 0 82 0 0 Liabilities: Future policy benefits (1,775,097 ) 0 0 0 (1,836,960 ) 0 Policyholders' account balances (691,927 ) 0 0 0 (691,376 ) 0 Six Months Ended June 30, 2019 Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 29,816 $ 0 $ 4,576 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 34,392 $ 0 Foreign government 0 6 0 0 0 0 0 159 0 165 0 Corporate securities(4) 56,588 (3,178 ) 2,122 (53 ) 0 (9,681 ) 0 8,216 0 54,014 (3,163 ) Structured securities(5) 6,556 1,310 0 (2 ) 0 (4,156 ) 0 77,660 (77,071 ) 4,297 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 0 0 751 0 605 (146 ) Equity securities 15,997 1,108 0 0 0 0 0 0 0 17,105 1,108 Other invested assets 4 0 0 0 0 0 0 0 0 4 0 Short-term investments 0 0 463 0 0 (369 ) 0 0 0 94 0 Reinsurance recoverables 5,600,008 2,406,506 479,391 0 0 0 0 0 0 8,485,905 2,504,883 Receivables from parent and affiliates 9,261 193 0 0 0 (3,159 ) 0 0 0 6,295 0 Liabilities: Future policy benefits (5,588,840 ) (2,412,199 ) 0 0 (475,502 ) 0 0 0 0 (8,476,541 ) (2,510,576 ) Policyholders' account balances(6) (13,015 ) (725,541 ) 0 0 (48,413 ) 0 0 0 0 (786,969 ) (724,989 ) Six Months Ended June 30, 2019 Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (3,067 ) $ 0 $ 842 $ 363 $ (3,163 ) $ 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 (146 ) Equity securities 0 1,108 0 0 0 1,108 Other invested assets 0 0 0 0 0 0 Short-term investments 0 0 0 0 0 0 Reinsurance recoverables 2,406,506 0 0 0 2,504,883 0 Receivables from parent and affiliates 0 0 0 193 0 0 Liabilities: Future policy benefits (2,412,199 ) 0 0 0 (2,510,576 ) 0 Policyholders' account balances (725,541 ) 0 0 0 (724,989 ) 0 Three Months Ended June 30, 2018(7) Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 21,569 $ 0 $ 2,842 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 24,411 $ 0 Foreign government 166 (6 ) 0 0 0 0 0 0 160 0 Corporate securities(4) 72,615 (1,647 ) 3,125 (201 ) 0 (15,501 ) (1 ) 4,028 0 62,418 (49 ) Structured securities(5) 94,873 (184 ) 10,648 (196 ) 0 (4,871 ) 0 0 (80,609 ) 19,661 0 Other assets: Equity securities 17,039 (414 ) 0 0 0 0 0 0 0 16,625 (414 ) Other invested assets 10 (5 ) 0 0 0 0 0 0 0 5 (5 ) Short-term investments 1,194 0 1,870 0 0 (2,731 ) 0 0 0 333 (1 ) Cash equivalents 0 0 2,550 0 0 (1,986 ) 0 0 0 564 0 Reinsurance recoverables 4,214,114 (491,557 ) 221,324 0 0 0 0 0 0 3,943,881 (441,257 ) Receivables from parent and affiliates 6,531 0 0 0 0 0 0 0 (6,531 ) 0 0 Liabilities: Future policy benefits (4,191,373 ) 502,643 0 0 (228,243 ) 0 0 0 0 (3,916,973 ) 459,185 Policyholders' account balances(6) (39,516 ) (7,859 ) 0 0 0 5,429 0 0 0 (41,946 ) (7,860 ) Other liabilities (15,955 ) (10,535 ) 8,880 0 0 0 0 0 0 (17,610 ) (10,590 ) Three Months Ended June 30, 2018(7) Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (303 ) $ 0 $ (1,620 ) $ 86 $ (49 ) $ 0 Other assets: Equity securities 0 (414 ) 0 0 0 (414 ) Other invested assets (5 ) 0 0 0 (5 ) 0 Short-term investments 0 0 0 0 (1 ) 0 Reinsurance recoverables (491,557 ) 0 0 0 (441,257 ) 0 Receivables from parent and affiliates 0 0 0 0 0 0 Liabilities: Future policy benefits 502,643 0 0 0 459,185 0 Policyholders' account balances (7,859 ) 0 0 0 (7,860 ) 0 Other liabilities (10,535 ) 0 0 0 (10,590 ) 0 Six Months Ended June 30, 2018(7) Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 19,204 $ 0 $ 5,207 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 24,411 $ 0 Foreign government 0 (14 ) 0 0 0 0 174 0 0 160 0 Corporate securities(4) 75,421 (711 ) 4,147 (201 ) 0 (20,071 ) 14 4,028 (209 ) 62,418 (75 ) Structured securities(5) 111,028 (53 ) 10,838 (196 ) 0 (8,066 ) 0 13,513 (107,403 ) 19,661 0 Other assets: Equity securities 17,525 (900 ) 0 0 0 0 0 0 0 16,625 (900 ) Other invested assets 0 (4 ) 0 0 0 0 0 9 0 5 (4 ) Short-term investments 1,339 (18 ) 5,270 0 0 (6,244 ) (14 ) 0 0 333 (19 ) Cash equivalents 0 0 2,550 0 0 (1,986 ) 0 0 0 564 0 Reinsurance recoverables 5,457,649 (1,954,549 ) 440,781 0 0 0 0 0 0 3,943,881 (1,844,015 ) Receivables from parent and affiliates 0 (20 ) 0 0 0 0 0 6,551 (6,531 ) 0 0 Liabilities: Future policy benefits (5,452,583 ) 1,990,198 0 0 (454,588 ) 0 0 0 0 (3,916,973 ) 1,879,579 Policyholders' account balances(6) (46,651 ) (2,846 ) 0 0 0 7,551 0 0 0 (41,946 ) (2,847 ) Other liabilities 0 (35,315 ) 17,705 0 0 0 0 0 0 (17,610 ) (35,231 ) Six Months Ended June 30, 2018(7) Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (235 ) $ 0 $ (706 ) $ 163 $ (75 ) $ 0 Other assets: Equity securities 0 (900 ) 0 0 0 (900 ) Other invested assets (4 ) 0 0 0 (4 ) 0 Short-term investments (18 ) 0 0 0 (19 ) 0 Reinsurance recoverables (1,954,549 ) 0 0 0 (1,844,015 ) 0 Receivables from parent and affiliates 0 (20 ) 0 0 0 0 Liabilities: Future policy benefits 1,990,198 0 0 0 1,879,579 0 Policyholders' account balances (2,846 ) 0 0 0 (2,847 ) 0 Other liabilities (35,315 ) 0 0 0 (35,231 ) 0 (1) Realized investment gains (losses) on future policy benefits and reinsurance recoverables primarily represent the change in the fair value of the Company's living benefit guarantees on certain of its variable annuity contracts. (2) Other includes reclassifications of certain assets and liabilities between reporting categories. (3) Unrealized gains or losses related to assets still held at the end of the period do not include amortization or accretion of premiums and discounts. (4) Includes U.S. corporate public, U.S. corporate private, foreign corporate public and foreign corporate private securities. (5) Includes asset-backed, commercial mortgage-backed and residential mortgage-backed securities. (6) Issuances and settlements for Policyholders' account balances are presented net in the rollforward. (7) Prior period amounts have been updated to conform to current period presentation. Fair Value of Financial Instruments The table below presents the carrying amount and fair value by fair value hierarchy level of certain financial instruments that are not reported at fair value. The financial instruments presented below are reported at carrying value on the Company’s Unaudited Interim Consolidated Statements of Financial Position. In some cases, as described below, the carrying amount equals or approximates fair value. June 30, 2019 Fair Value Carrying Amount(1) Level 1 Level 2 Level 3 Total Total (in thousands) Assets: Commercial mortgage and other loans $ 0 $ 0 $ 1,279,335 $ 1,279,335 $ 1,225,668 Policy loans 0 0 1,263,413 1,263,413 1,263,413 Cash and cash equivalents 42,863 16,000 0 58,863 58,863 Accrued investment income 0 93,167 0 93,167 93,167 Receivables from parent and affiliates 0 140,992 0 140,992 140,992 Other assets 0 29,764 0 29,764 29,764 Total assets $ 42,863 $ 279,923 $ 2,542,748 $ 2,865,534 $ 2,811,867 Liabilities: Policyholders’ account balances - investment contracts $ 0 $ 1,225,951 $ 278,802 $ 1,504,753 $ 1,505,223 Cash collateral for loaned securities 0 7,083 0 7,083 7,083 Payables to parent and affiliates 0 146,207 0 146,207 146,207 Other liabilities 0 341,498 0 341,498 341,498 Total liabilities $ 0 $ 1,720,739 $ 278,802 $ 1,999,541 $ 2,000,011 December 31, 2018 Fair Value Carrying Amount(1) Level 1 Level 2 Level 3 Total Total (in thousands) Assets: Commercial mortgage and other loans $ 0 $ 0 $ 1,214,350 $ 1,214,350 $ 1,209,150 Policy loans 0 0 1,236,077 1,236,077 1,236,077 Cash and cash equivalents 56,894 143,000 0 199,894 199,894 Accrued investment income 0 88,278 0 88,278 88,278 Receivables from parent and affiliates 0 154,938 0 154,938 154,938 Other assets 0 28,950 0 28,950 28,950 Total assets $ 56,894 $ 415,166 $ 2,450,427 $ 2,922,487 $ 2,917,287 Liabilities: Policyholders’ account balances - investment contracts $ 0 $ 1,206,747 $ 272,322 $ 1,479,069 $ 1,486,929 Cash collateral for loaned securities 0 11,063 0 11,063 11,063 Payables to parent and affiliates 0 229,345 0 229,345 229,345 Other liabilities 0 372,997 0 372,997 372,997 Total liabilities $ 0 $ 1,820,152 $ 272,322 $ 2,092,474 $ 2,100,334 (1) Carrying values presented herein differ from those in the Company’s Unaudited Interim Consolidated Statements of Financial Position because certain items within the respective financial statement captions are not considered financial instruments or are out of scope under authoritative guidance relating to disclosures of the fair value of financial instruments.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	INCOME TAXES The Company uses a full year projected effective tax rate approach to calculate year-to-date taxes. In addition, certain items impacting total income tax expense are recorded in the periods in which they occur. The projected effective tax rate is the ratio of projected "Income tax expense (benefit)" divided by projected "Income (loss) from operations before income taxes and equity in earnings of operating joint venture." Taxes attributable to the operating joint venture are recorded within "Equity in earnings of operating joint venture, net of taxes." The interim period tax expense (or benefit) is the difference between the year-to-date income tax provision and the amounts reported for the previous interim periods of the fiscal year. The Company's income tax provision, on a consolidated basis, amounted to an income tax benefit of $(51.5) million , or (60.03)% of income (loss) from operations before income taxes and equity in earnings of operating joint venture, in the first six months of 2019, compared to $(15.7) million , or (47.60)% , in the first six months of 2018. The Company's current and prior effective tax rates differed from the U.S. statutory tax rate of 21% primarily due to non-taxable investment income and tax credits.

Reinsurance

Reinsurance	6 Months Ended
	Jun. 30, 2019
Reinsurance Disclosures [Abstract]
Reinsurance	REINSURANCE The Company participates in reinsurance with its affiliates Prudential Life Insurance Company of Taiwan Inc. (“Prudential of Taiwan”), Prudential Arizona Reinsurance Captive Company (“PARCC”), Prudential Arizona Reinsurance Term Company (“PAR Term”), Prudential Arizona Reinsurance Universal Company (“PAR U”), Prudential Universal Reinsurance Company ("PURC"), Prudential Term Reinsurance Company (“Term Re”), PALAC, Gibraltar Universal Life Reinsurance Company ("GUL Re") and Dryden Arizona Reinsurance Term Company (“DART”), its parent company Prudential Insurance, as well as third parties. The reinsurance agreements provide risk diversification and additional capacity for future growth, limit the maximum net loss potential, manage statutory capital, and facilitate the Company's capital market hedging program. Life reinsurance is accomplished through various plans of reinsurance, primarily yearly renewable term and coinsurance. Reinsurance ceded arrangements do not discharge the Company as the primary insurer. Ceded balances would represent a liability of the Company in the event the reinsurers were unable to meet their obligations to the Company under the terms of the reinsurance agreements. The Company believes a material reinsurance liability resulting from such inability of reinsurers to meet their obligations is unlikely. Reserves related to reinsured long-duration contracts are accounted for using assumptions consistent with those used to account for the underlying contracts. Amounts recoverable from reinsurers for long-duration reinsurance arrangements are estimated in a manner consistent with the claim liabilities and policy benefits associated with the reinsured policies. Reinsurance policy charges and fee income ceded for universal life and variable annuity products are accounted for as a reduction of policy charges and fee income. Reinsurance premiums ceded for term insurance products are accounted for as a reduction of premiums. Realized investment gains and losses include the impact of reinsurance agreements, particularly reinsurance agreements involving living benefit guarantees. The Company has entered into reinsurance agreements to transfer the risk related to the living benefit guarantees on variable annuities to PALAC excluding the PLNJ business which was reinsured to Prudential Insurance. These reinsurance agreements are derivatives and have been accounted for in the same manner as embedded derivatives and the changes in the fair value of these derivatives are recognized through “Realized investment gains (losses), net”. See Note 4 for additional information related to the accounting for embedded derivatives. Reinsurance amounts included in the Company’s Unaudited Interim Consolidated Statements of Financial Position as of June 30, 2019 and December 31, 2018 were as follows: June 30, 2019 December 31, 2018 (in thousands) Reinsurance recoverables $ 38,946,785 $ 34,682,127 Policy loans (134,453 ) (130,502 ) Deferred policy acquisition costs (6,912,973 ) (7,267,847 ) Deferred sales inducements (557,073 ) (562,052 ) Other assets(1) 165,706 185,573 Policyholders’ account balances 4,959,484 5,004,112 Future policy benefits 3,914,630 3,376,048 Other liabilities(2) 787,950 621,856 (1) “Other assets” includes $0.1 million of unaffiliated activity as of both June 30, 2019 and December 31, 2018 . (2) “Other liabilities” includes $35 million and $27 million of unaffiliated activity as of June 30, 2019 and December 31, 2018 , respectively. The reinsurance recoverables by counterparty are broken out below: June 30, 2019 December 31, 2018 (in thousands) PAR U $ 11,963,017 $ 11,444,032 PALAC 11,483,993 8,828,190 PURC 4,371,948 4,127,455 PARCC 2,480,256 2,527,690 GUL Re 2,110,403 2,017,810 PAR Term 1,726,036 1,678,745 Prudential Insurance 1,624,532 1,226,917 Prudential of Taiwan 1,426,279 1,414,669 Term Re 1,417,733 1,259,141 DART 220,163 119,946 Unaffiliated 122,425 37,532 Total reinsurance recoverables $ 38,946,785 $ 34,682,127 Reinsurance amounts, included in the Company’s Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss) for the three and six months ended June 30, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Premiums: Direct $ 476,986 $ 449,613 $ 939,257 $ 891,568 Assumed(1) 52 58 106 118 Ceded(2) (464,621 ) (434,768 ) (912,952 ) (868,868 ) Net premiums 12,417 14,903 26,411 22,818 Policy charges and fee income: Direct 1,106,725 717,264 1,959,920 1,563,511 Assumed 128,748 122,695 255,707 244,404 Ceded(3) (1,086,802 ) (670,955 ) (1,927,767 ) (1,509,756 ) Net policy charges and fee income 148,671 169,004 287,860 298,159 Net investment income: Direct 106,949 82,957 201,507 162,106 Assumed 407 385 803 758 Ceded (1,794 ) (1,693 ) (3,498 ) (3,300 ) Net investment income 105,562 81,649 198,812 159,564 Asset administration fees: Direct 87,951 86,695 171,819 173,728 Assumed 0 0 0 0 Ceded (83,990 ) (83,151 ) (164,201 ) (166,711 ) Net asset administration fees 3,961 3,544 7,618 7,017 Other income: Direct 20,030 12,093 39,828 29,346 Assumed(4) (1,271 ) (100 ) (1,471 ) (190 ) Ceded (39 ) 226 (62 ) 173 Amortization of reinsurance income (3,722 ) 3,859 (2,340 ) 6,045 Net other income 14,998 16,078 35,955 35,374 Realized investment gains (losses), net: Direct (1,783,941 ) 503,522 (2,419,452 ) 1,978,284 Assumed 0 0 0 0 Ceded(5) 1,731,691 (540,412 ) 2,318,567 (2,064,216 ) Realized investment gains (losses), net (52,250 ) (36,890 ) (100,885 ) (85,932 ) Policyholders’ benefits (including change in reserves): Direct 1,150,985 644,501 1,797,296 1,296,173 Assumed(6) 282,961 146,405 494,711 259,207 Ceded(7) (1,387,655 ) (750,465 ) (2,206,238 ) (1,463,203 ) Net policyholders’ benefits (including change in reserves) 46,291 40,441 85,769 92,177 Interest credited to policyholders’ account balances: Direct 118,420 121,478 213,111 246,212 Assumed 34,512 34,849 65,169 71,366 Ceded (102,222 ) (113,772 ) (183,373 ) (234,225 ) Net interest credited to policyholders’ account balances 50,710 42,555 94,907 83,353 Reinsurance expense allowances and general and administrative expenses, net of capitalization and amortization (573,978 ) (345,280 ) (917,993 ) (779,192 ) (1) "Premiums assumed" includes $0 million of unaffiliated activity for both the three months ended June 30, 2019 and 2018 , respectively and $0.1 million for both the six months ended June 30, 2019 and 2018 , respectively. (2) "Premiums ceded" includes $(0.1) million and $0 million of unaffiliated activity for the three months ended June 30, 2019 , and 2018 respectively and $(0.2) million and $0 million for the six months ended June 30, 2019 and 2018 , respectively. (3) "Policy charges and fee income ceded" includes $(7) million and $(4) million of unaffiliated activity for the three months ended June 30, 2019 and 2018 , respectively, and $(12) million and $(6) million for the six months ended June 30, 2019 and 2018, respectively. (4) "Other income assumed" includes $(1) million and $(0.1) million of unaffiliated activity for the three months ended June 30, 2019 and 2018 , respectively, and $(2) million and $(0.2) million for the six months ended June 30, 2019 and 2018, respectively. (5) “Realized investment gains (losses), net ceded” includes $42 million and $(10) million of unaffiliated activity for the three months ended June 30, 2019 and 2018 , respectively, and $56 million and $(48) million for the six months ended June 30, 2019 and 2018, respectively. (6) "Policyholders' benefits (including change in reserves) assumed" includes $0 million of unaffiliated activity for both the three months ended June 30, 2019 and 2018 , respectively, and $(0.2) million and $(0.1) million for the six months ended June 30, 2019 , and 2018, respectively. (7) "Policyholders' benefits (including change in reserves) ceded" includes $(2) million of unaffiliated activity for both the three months ended June 30, 2019 and 2018 , and $(4) million for both the six months ended June 30, 2019 and 2018. The gross and net amounts of life insurance face amount in force as of June 30, 2019 and 2018 were as follows: 2019 2018 (in thousands) Direct gross life insurance face amount in force $ 966,542,451 $ 908,332,587 Assumed gross life insurance face amount in force 40,382,452 41,317,052 Reinsurance ceded (925,430,727 ) (876,823,569 ) Net life insurance face amount in force $ 81,494,176 $ 72,826,070 Information regarding significant affiliated reinsurance agreements is described below. PAR U Pruco Life reinsures an amount equal to 70% of all the risks associated with Universal Protector policies having no-lapse guarantees as well as certain of its universal policies, with effective dates prior to January 1, 2011 . Effective July 1, 2012 , PLNJ reinsures an amount equal to 95% of all the risks associated with Universal Protector policies having no-lapse guarantees as well as certain of its universal policies, excluding those policies that are subject to principles-based reserving. On January 2, 2013 , Pruco Life began to assume Guaranteed Universal Life ("GUL") business from Prudential Insurance in connection with the acquisition of The Hartford Life Business. The GUL business assumed from Prudential Insurance was subsequently retroceded to PAR U. PALAC Effective April 1, 2016 , the Company entered into a reinsurance agreement to reinsure its variable annuity base contracts, along with the living benefit guarantees to PALAC, excluding the PLNJ business, which was reinsured to Prudential Insurance. This reinsurance agreement covers new and in force business and excludes business reinsured externally. PURC Pruco Life reinsures an amount equal to 70% of all the risks associated with its Universal Protector policies having no-lapse guarantees as well as certain of its universal policies, with effective dates from January 1, 2011 through December 31, 2013 , with PURC and 95% of all the risks associated with Universal Protector policies having no-lapse guarantees, as well as certain of its universal policies, with effective dates from January 1, 2014 through December 31, 2016 . PARCC The Company reinsures 90% of the risks under its term life insurance policies, with effective dates prior to January 1, 2010 through an automatic coinsurance agreement with PARCC. GUL Re Effective January 1, 2017 , Pruco Life entered into an automatic coinsurance agreement with GUL Re to reinsure an amount equal to 95% of all the risks associated with Universal Protector policies having no-lapse guarantees, as well as certain of its universal policies, with effective dates on or after January 1, 2017 , excluding those policies that are subject to principles-based reserving. Effective July 1, 2017 , Pruco Life amended this agreement to include 30% of Universal Protector policies having no-lapse guarantees as well as certain of its universal policies with effective dates prior to January 1, 2014 . PAR Term The Company reinsures 95% of the risks under its term life insurance policies with effective dates January 1, 2010 through December 31, 2013 , through an automatic coinsurance agreement with PAR Term. Prudential of Taiwan On January 31, 2001 , Pruco Life transferred all of its assets and liabilities associated with its Taiwanese branch, including its Taiwanese insurance book of business, to Prudential of Taiwan, an affiliated company. The mechanism used to transfer this block of business in Taiwan is referred to as a “full acquisition and assumption” transaction. Under this mechanism, Pruco Life is jointly liable with Prudential of Taiwan for two years from the giving of notice to all obligees for all matured obligations and for two years after the maturity date of not-yet-matured obligations. Prudential of Taiwan is also contractually liable, under indemnification provisions of the transaction, for any liabilities that may be asserted against Pruco Life. The transfer of the insurance related assets and liabilities was accounted for as a long-duration coinsurance transaction under U.S. GAAP. Under this accounting treatment, the insurance related liabilities remain on the books of Pruco Life and an offsetting reinsurance recoverable is established. These assets and liabilities are denominated in U.S. dollars. Term Re The Company reinsures 95% of the risks under its term life insurance policies, with effective dates on or after January 1, 2014 through December 31, 2017 , through an automatic coinsurance agreement with Term Re. Prudential Insurance The Company has a yearly renewable term reinsurance agreement with Prudential Insurance and reinsures the majority of all mortality risks not otherwise reinsured. Effective July 1, 2017 , this agreement has been terminated for certain new business, primarily Universal Life insurance policies. Effective July 1, 2017 , the Company reinsures a portion of the mortality risk directly to third-party reinsurers and retains all of the non-reinsured portion of the mortality risk. On January 2, 2013 , Pruco Life began to assume GUL business from Prudential Insurance in connection with the acquisition of the Hartford Financial Services Group, Inc. ("Hartford Financial"). The GUL business assumed from Prudential Insurance was subsequently retroceded to PAR U. In May 2018, Hartford Financial sold a group of operating subsidiaries, which includes two of Prudential Insurance's counterparties to these reinsurance arrangements. There is no impact to the terms, rights or obligations of Prudential Insurance, or operation of these reinsurance arrangements, as a result of this change in control of such counterparties. Similarly, there is no impact to the Company's reinsurance arrangements with respect to such GUL business as a result of this change in control. The Company has reinsured a group annuity contract with Prudential Insurance, in consideration for a single premium payment by the Company, providing reinsurance equal to 100% of all payments due under the contract. Effective April 1, 2016, PLNJ entered into a reinsurance agreement to reinsure its variable annuity base contracts, along with the living benefit guarantees to Prudential Insurance. This reinsurance agreement covers new and in force business and excludes business reinsured externally. DART Effective January 1, 2018 , the Company entered into an automatic coinsurance agreement with DART to reinsure an amount equal to 95% of the risks associated with its term life insurance policies with effective dates on or after January 1, 2018 . Information regarding significant third-party reinsurance arrangements is described below. Union Hamilton Between April 1, 2015 and December 31, 2016 , the Company, excluding its subsidiaries, reinsured approximately 50% of the new business related to “highest daily” living benefits rider guarantees on HDI v.3.0 product, available with Prudential Premier ® Retirement Variable Annuity, to Union Hamilton. This reinsurance remains in force for the duration of the underlying annuity contracts. New sales of HDI v.3.0 subsequent to December 31, 2016 are not covered by this external reinsurance agreement. As of June 30, 2019 , $3.1 billion of HDI v.3.0 account values are reinsured to Union Hamilton.

Equity

Equity	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Equity	Accumulated Other Comprehensive Income (Loss) AOCI represents the cumulative OCI items that are reported separate from net income and detailed on the Consolidated Statements of Comprehensive Income. The balance of and changes in each component of AOCI as of and for the six months ended June 30, 2019 and 2018 , are as follows: Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation Adjustment Net Unrealized Investment Gains (Losses)(1) Total Accumulated Other Comprehensive Income (Loss) (in thousands) Balance, December 31, 2018 $ (17,448 ) $ (10,848 ) $ (28,296 ) Change in OCI before reclassifications 7,007 332,927 339,934 Amounts reclassified from AOCI 0 10,672 10,672 Income tax benefit (expense) 2 (72,147 ) (72,145 ) Balance, June 30, 2019 $ (10,439 ) $ 260,604 $ 250,165 Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation Adjustment Net Unrealized Investment Gains (Losses)(1) Total Accumulated Other Comprehensive Income (Loss) (in thousands) Balance, December 31, 2017 $ (234 ) $ 165,580 $ 165,346 Change in OCI before reclassifications (6,590 ) (223,420 ) (230,010 ) Amounts reclassified from AOCI 0 (3,634 ) (3,634 ) Income tax benefit (expense) 1,384 47,679 49,063 Cumulative effect of adoption of ASU 2016-01 0 (1,539 ) (1,539 ) Cumulative effect of adoption of ASU 2018-02 (50 ) 30,499 30,449 Balance, June 30, 2018 $ (5,490 ) $ 15,165 $ 9,675 (1) Includes cash flow hedges of $29 million and $(18) million as of June 30, 2019 and December 31, 2018 , respectively, and $(9) million and $41 million as of June 30, 2018 and December 31, 2017 , respectively . Reclassifications out of Accumulated Other Comprehensive Income (Loss) Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Amounts reclassified from AOCI (1)(2): Net unrealized investment gains (losses): Cash flow hedges - Currency/Interest rate(3) $ (4,393 ) $ 7,442 $ (3,999 ) $ 7,761 Net unrealized investment gains (losses) on available-for-sale securities (2,489 ) (3,318 ) (6,673 ) (4,127 ) Total net unrealized investment gains (losses)(4) (6,882 ) 4,124 (10,672 ) 3,634 Total reclassifications for the period $ (6,882 ) $ 4,124 $ (10,672 ) $ 3,634 (1) All amounts are shown before tax. (2) Positive amounts indicate gains/benefits reclassified out of AOCI. Negative amounts indicate losses/costs reclassified out of AOCI. (3) See Note 4 for additional information on cash flow hedges. (4) See table below for additional information on unrealized investment gains (losses), including the impact on deferred policy acquisition and other costs, future policy benefits, policyholders’ account balances and other liabilities. Net Unrealized Investment Gains (Losses) Net unrealized investment gains (losses) on securities classified as available-for-sale and certain other invested assets and other assets are included in the Company’s Unaudited Interim Consolidated Statements of Financial Position as a component of AOCI. Changes in these amounts include reclassification adjustments to exclude from OCI those items that are included as part of “Net income” for a period that had been part of OCI in earlier periods. The amounts for the periods indicated below, split between amounts related to fixed maturity securities on which an OTTI loss has been recognized, and all other net unrealized investment gains (losses), are as follows: Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities on which an OTTI loss has been recognized Net Unrealized Gains (Losses) on Investments Deferred Policy Acquisition Costs and Other Costs(2) Future Policy Benefits, Policyholders' Account Balances and Other Liabilities(3) Deferred Income Tax (Liability) Benefit Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses) (in thousands) Balance, December 31, 2018 $ (689 ) $ (152 ) $ 37 $ (192 ) $ (996 ) Net investment gains (losses) on investments arising during the period 1,568 0 0 (329 ) 1,239 Reclassification adjustment for (gains) losses included in net income (137 ) 0 0 29 (108 ) Reclassification adjustment for OTTI (gains) losses excluded from net income(1) (207 ) 0 0 43 (164 ) Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 0 105 0 (22 ) 83 Impact of net unrealized investment (gains) losses on future policy benefits, policyholders' account balances and other liabilities 0 0 (127 ) 27 (100 ) Balance, June 30, 2019 $ 535 $ (47 ) $ (90 ) $ (444 ) $ (46 ) (1) Represents "transfers in" related to the portion of OTTI losses recognized during the period that were not recognized in earnings for securities with no prior OTTI loss. (2) "Other costs" primarily includes reinsurance recoverables and deferred reinsurance losses. (3) "Other liabilities" primarily includes reinsurance payables. All Other Net Unrealized Investment Gains (Losses) in AOCI Net Unrealized Gains (Losses) on Investments(2) Deferred Policy Acquisition Costs and Other Costs(3) Future Policy Benefits, Policyholders' Account Balances and Other Liabilities(4) Deferred Income Tax (Liability) Benefit Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses) (in thousands) Balance, December 31, 2018 $ (16,632 ) $ (65,743 ) $ 68,005 $ 4,518 $ (9,852 ) Net investment gains (losses) on investments arising during the period 375,628 0 0 (78,873 ) 296,755 Reclassification adjustment for (gains) losses included in net income 10,809 0 0 (2,270 ) 8,539 Reclassification adjustment for OTTI (gains) losses excluded from net income(1) 207 0 0 (43 ) 164 Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 0 176,301 0 (37,019 ) 139,282 Impact of net unrealized investment (gains) losses on future policy benefits, policyholders' account balances and other liabilities 0 0 (220,548 ) 46,310 (174,238 ) Balance, June 30, 2019 $ 370,012 $ 110,558 $ (152,543 ) $ (67,377 ) $ 260,650 (1) Represents "transfers out" related to the portion of OTTI losses recognized during the period that were not recognized in earnings for securities with no prior OTTI loss. (2) Includes cash flow hedges. See Note 4 for information on cash flow hedges. (3) "Other costs" primarily includes reinsurance recoverables and deferred reinsurance losses. (4) "Other liabilities" primarily includes reinsurance payables.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	RELATED PARTY TRANSACTIONS The Company has extensive transactions and relationships with Prudential Insurance and other affiliates. Although we seek to ensure that these transactions and relationships are fair and reasonable, it is possible that the terms of these transactions are not the same as those that would result from transactions among unrelated parties. Expense Charges and Allocations Many of the Company’s expenses are allocations or charges from Prudential Insurance or other affiliates. These expenses can be grouped into general and administrative expenses and agency distribution expenses. The Company’s general and administrative expenses are charged to the Company using allocation methodologies based on business production processes. Management believes that the methodology is reasonable and reflects costs incurred by Prudential Insurance to process transactions on behalf of the Company. The Company operates under service and lease agreements whereby services of officers and employees, supplies, use of equipment and office space are provided by Prudential Insurance. The Company reviews its allocation methodology periodically which it may adjust accordingly. General and administrative expenses include allocations of stock compensation expenses related to a stock-based awards program and a deferred compensation program issued by Prudential Financial. The expense charged to the Company for the stock-based awards program was $0.6 million and $0.5 million for the three months ended June 30, 2019 , and 2018 , respectively, and $0.7 million for both the six months ended June 30, 2019 and 2018 . The expense charged to the Company for the deferred compensation program was $1 million and $2 million for the three months ended June 30, 2019 and 2018 , respectively, and $4 million for both the six months ended June 30, 2019 and 2018 . The Company is charged for its share of employee benefit expenses. These expenses include costs for funded and non-funded contributory and non-contributory defined benefit pension plans. Some of these benefits are based on final earnings and length of service while others are based on an account balance, which takes into consideration age, service and earnings during a career. The Company’s share of net expense for the pension plans was $5 million and $6 million for the three months ended June 30, 2019 and 2018 , respectively, and $10 million and $12 million for the six months ended June 30, 2019 and 2018 , respectively. The Company is also charged for its share of the costs associated with welfare plans issued by Prudential Insurance. These expenses include costs related to medical, dental, life insurance and disability. The Company's share of net expense for the welfare plans was $6 million and $7 million for the three months ended June 30, 2019 and 2018 , respectively, and $12 million and $15 million for the six months ended June 30, 2019 and 2018 , respectively. Prudential Insurance sponsors voluntary savings plans for its employee 401(k) plans. The plans provide for salary reduction contributions by employees and matching contributions by the Company of up to 4% of annual salary. The Company’s expense for its share of the voluntary savings plan was $2 million and $3 million for the three months ended June 30, 2019 and 2018 , respectively, and $5 million for both the six months ended June 30, 2019 and 2018 . The Company is charged distribution expenses from Prudential Insurance’s agency network for both its domestic life and annuity products through a transfer pricing agreement, which is intended to reflect a market-based pricing arrangement. The Company pays commissions and certain other fees to Prudential Annuities Distributors, Inc. (“PAD”) in consideration for PAD’s marketing and underwriting of the Company’s annuity products. Commissions and fees are paid by PAD to broker-dealers who sell the Company’s annuity products. Commissions and fees paid by the Company to PAD were $197 million and $189 million for the three months ended June 30, 2019 and 2018 , respectively, and $376 million and $363 million for the six months ended June 30, 2019 and 2018 , respectively. The Company is charged for its share of corporate expenses incurred by Prudential Financial to benefit its businesses, such as advertising, executive oversight, external affairs and philanthropic activity. The Company’s share of corporate expenses was $20 million and $19 million for the three months ended June 30, 2019 and 2018 , respectively, and $37 million for both the six months ended June 30, 2019 and 2018 . Corporate-Owned Life Insurance The Company has sold five Corporate-Owned Life Insurance (“COLI”) policies to Prudential Insurance, and one to Prudential Financial. The cash surrender value included in separate accounts for these COLI policies was $4,142 million at June 30, 2019 and $3,631 million at December 31, 2018 . Fees related to these COLI policies were $11 million for both the three months ended June 30, 2019 and 2018 , and $24 million and $23 million for the six months ended June 30, 2019 and 2018 , respectively. The Company retains the majority of the mortality risk associated with these COLI policies up to $3.5 million per individual policy. Affiliated Investment Management Expenses In accordance with an agreement with PGIM, Inc. ("PGIM"), the Company pays investment management expenses to PGIM who acts as investment manager to certain Company general account and separate account assets. Investment management expenses paid to PGIM related to this agreement were $3 million and $4 million for the three months ended June 30, 2019 and 2018 , respectively, and $7 million for both the six months ended June 30, 2019 and 2018 . These expenses are recorded as “Net investment income” in the Company's Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss). Derivative Trades In its ordinary course of business, the Company enters into OTC derivative contracts with an affiliate, PGF. For these OTC derivative contracts, PGF has a substantially equal and offsetting position with an external counterparty. See Note 4 for additional information. Joint Ventures The Company has made investments in joint ventures with certain subsidiaries of Prudential Financial. "Other invested assets" includes $102 million and $88 million as of June 30, 2019 and December 31, 2018 , respectively. "Net investment income" related to these ventures includes a gain of $2 million for both the three months ended June 30, 2019 and 2018 , and $7 million and $2 million for the six months ended June 30, 2019 and 2018 , respectively. Affiliated Asset Administration Fee Income The Company has a revenue sharing agreement with AST Investment Services, Inc. ("ASTISI") and PGIM Investments LLC ("PGIM Investments") whereby the Company receives fee income based on policyholders' separate account balances invested in the Advanced Series Trust. Income received from ASTISI and PGIM Investments related to this agreement was $84 million and $83 million for the three months ended June 30, 2019 and 2018 , respectively, and $165 million and $167 million for the six months ended June 30, 2019 and 2018 , respectively. These revenues are recorded as “Asset administration fees” in the Company's Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss). The Company has a revenue sharing agreement with PGIM Investments, whereby the Company receives fee income based on policyholders' separate account balances invested in The Prudential Series Fund. Income received from PGIM Investments related to this agreement was $3 million for both the three months ended June 30, 2019 and 2018 , and $5 million for both the six months ended June 30, 2019 and 2018 . These revenues are recorded as “Asset administration fees” in the Company's Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss). Affiliated Notes Receivable Affiliated notes receivable included in “Receivables from parent and affiliates” at June 30, 2019 and December 31, 2018 were as follows: Maturity Dates Interest Rates June 30, 2019 December 31, 2018 (in thousands) U.S. dollar floating rate notes 2028 3.74% - 4.03 % $ 0 $ 6,502 U.S. dollar fixed rate notes 2020 - 2027 0.00% - 14.85 % 127,862 128,140 Total notes receivable - affiliated(1) $ 127,862 $ 134,642 (1) All notes receivable may be called for prepayment prior to the respective maturity dates under specified circumstances. The affiliated notes receivable shown above are classified as available-for-sale securities and other trading assets carried at fair value. The Company monitors the internal and external credit ratings of these loans and loan performance. The Company also considers any guarantees made by Prudential Insurance for loans due from affiliates. Accrued interest receivable related to these loans was $1 million at both June 30, 2019 and December 31, 2018 , and is included in “Other assets”. Revenues related to these assets were $1 million for both the three months ended June 30, 2019 and 2018 , and $2 million for both the six months ended June 30, 2019 and 2018 , and are included in “Other income”. Affiliated Asset Transfers The Company participates in affiliated asset trades with parent and sister companies. Book and market value differences for trades with a parent and sister are recognized within "Additional paid-in capital" (“APIC”) and "Realized investment gains (losses), net", respectively. The table below shows affiliated asset trades for the six months ended June 30, 2019 and for the year ended December 31, 2018 . Affiliate Date Transaction Security Type Fair Value Book Value APIC, Net of Tax Increase/(Decrease) Realized Investment Gain (Loss) (in thousands) DART January 2018 Purchase Other Invested Assets $ 21,457 $ 21,457 $ 0 $ 0 PALAC April 2018 Purchase Fixed Maturities $ 64,313 $ 64,313 $ 0 $ 0 GUL Re May 2018 Purchase Fixed Maturities $ 87,486 $ 87,486 $ 0 $ 0 GUL Re May 2018 Purchase Fixed Maturities $ 37,921 $ 37,921 $ 0 $ 0 Prudential Realty Securities, Inc. November 2018 Purchase Commercial Mortgages $ 3,259 $ 3,425 $ 0 $ (167 ) Prudential Insurance February 2019 Sale Commercial Mortgages $ 4,995 $ 5,000 $ (4 ) $ 0 PALAC April 2019 Sale Equity Securities $ 14,525 $ 13,466 $ 0 $ 1,059 Debt Agreements The Company is authorized to borrow funds up to $2.2 billion from affiliates to meet its capital and other funding needs. As of June 30, 2019 and December 31, 2018 , there was no debt outstanding. The total interest expense to the Company related to loans payable to affiliates was $0.6 million and $0.3 million for the three months ended June 30, 2019 and 2018 , respectively, and $0.8 million and $0.4 million for the six months ended June 30, 2019 and 2018 , respectively. Contributed Capital and Dividends Through June 2019, the Company did no t receive any capital contributions from Prudential Insurance. In March 2018, the Company received a capital contribution in the amount of $6 million from Prudential Insurance. Through June 2019, the Company did no t pay any dividends to Prudential Insurance. In 2018, the Company did no t pay any dividends. Reinsurance with Affiliates As discussed in Note 6 , the Company participates in reinsurance transactions with certain affiliates.

Commitments and Contingent Liab

Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingent Liabilities	COMMITMENTS AND CONTINGENT LIABILITIES Commitments The Company has made commitments to fund commercial mortgage loans. As of June 30, 2019 and December 31, 2018 , the outstanding balances on these commitments were $60 million and $14 million , respectively. The Company also made commitments to purchase or fund investments, mostly private fixed maturities. As of June 30, 2019 and December 31, 2018 , $265 million and $257 million , respectively, of these commitments were outstanding. Guarantees In July 2017, the Company formed a joint venture with CT Corp to provide life insurance solutions in Indonesia. The Company owns a 49% interest in the joint venture and has entered into a shareholders agreement with CT Corp that sets out their respective rights and obligations with respect to the joint venture. Among other things, the shareholders agreement obligates the Company and CT Corp to provide capital to the joint venture, as necessary to comply with applicable law or to maintain a specified minimum amount of capital in the joint venture. This obligation is not limited to a maximum amount. The Company does not expect to make any payments on this guarantee and is not carrying any liabilities associated with the guarantee. Contingent Liabilities On an ongoing basis, the Company and its regulators review its operations including, but not limited to, sales and other customer interface procedures and practices, and procedures for meeting obligations to our customers and other parties. These reviews may result in the modification or enhancement of processes or the imposition of other action plans, including concerning management oversight, sales and other customer interface procedures and practices, and the timing or computation of payments to customers and other parties. In certain cases, if appropriate, the Company may offer customers or other parties remediation and may incur charges, including the cost of such remediation, administrative costs and regulatory fines. The Company is subject to the laws and regulations of states and other jurisdictions concerning the identification, reporting and escheatment of unclaimed or abandoned funds, and is subject to audit and examination for compliance with these requirements. It is possible that the results of operations or the cash flows of the Company in a particular quarterly or annual period could be materially affected as a result of payments in connection with the matters discussed above or other matters depending, in part, upon the results of operations or cash flows for such period. Management believes, however, that ultimate payments in connection with these matters, after consideration of applicable reserves and rights to indemnification, should not have a material adverse effect on the Company’s financial position. Litigation and Regulatory Matters The Company is subject to legal and regulatory actions in the ordinary course of its business. Pending legal and regulatory actions include proceedings specific to the Company and proceedings generally applicable to business practices in the industry in which it operates. The Company is subject to class action lawsuits and other litigation involving a variety of issues and allegations involving sales practices, claims payments and procedures, premium charges, policy servicing and breach of fiduciary duty to customers. The Company is also subject to litigation arising out of its general business activities, such as its investments, contracts, leases and labor and employment relationships, including claims of discrimination and harassment, and could be exposed to claims or litigation concerning certain business or process patents. In addition, the Company, along with other participants in the businesses in which it engages, may be subject from time to time to investigations, examinations and inquiries, in some cases industry-wide, concerning issues or matters upon which such regulators have determined to focus. In some of the Company’s pending legal and regulatory actions, parties are seeking large and/or indeterminate amounts, including punitive or exemplary damages. The outcome of litigation or a regulatory matter, and the amount or range of potential loss at any particular time, is often inherently uncertain. The Company establishes accruals for litigation and regulatory matters when it is probable that a loss has been incurred and the amount of that loss can be reasonably estimated. For litigation and regulatory matters where a loss may be reasonably possible, but not probable, or is probable but not reasonably estimable, no accrual is established, but the matter, if material, is disclosed. The Company estimates that as of June 30, 2019 , the aggregate range of reasonably possible losses in excess of accruals established for those litigation and regulatory matters for which such an estimate currently can be made is less than $100 million . This estimate is not an indication of expected loss, if any, or the Company's maximum possible loss exposure on such matters. The Company reviews relevant information with respect to its litigation and regulatory matters on a quarterly and annual basis and updates its accruals, disclosures and estimates of reasonably possible loss based on such reviews. The following discussion of litigation and regulatory matters provides an update of those matters discussed in Note 14 to the Company’s Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 , and should be read in conjunction with the complete descriptions provided in the Form 10-K. Securities Lending and Foreign Tax Reclaim Matter In 2016, Prudential Financial self-reported to the SEC and the U.S. Department of Labor ("DOL"), and notified other regulators, that in some cases it failed to maximize securities lending income for the benefit of certain separate account investments due to a long-standing restriction benefiting Prudential Financial that limited the availability of loanable securities. Prudential Financial has removed the restriction and implemented a remediation plan for the benefit of customers. As part of Prudential Financial’s review of this matter, in 2018 it further self-reported to the SEC, and notified other regulators, that in some cases it failed to timely process foreign tax reclaims for the separate account investments. Prudential Financial has corrected the foreign tax reclaim process and has implemented a remediation plan for the benefit of customers. The DOL’s review of the securities lending matter is closed. Prudential Financial is cooperating with the SEC in its review of the securities lending and foreign tax reclaim matters (which includes a review of the remediation plans) and has entered into discussions with the SEC staff regarding a possible settlement of both matters that would potentially involve charges under the Investment Advisers Act and financial remedies. Prudential Financial cannot predict the outcome of the discussions with the SEC regarding these matters. Summary The Company’s litigation and regulatory matters are subject to many uncertainties, and given their complexity and scope, their outcome cannot be predicted. It is possible that the Company’s results of operations or cash flows in a particular quarterly or annual period could be materially affected by an ultimate unfavorable resolution of pending litigation and regulatory matters depending, in part, upon the results of operations or cash flows for such period. In light of the unpredictability of the Company’s litigation and regulatory matters, it is also possible that in certain cases an ultimate unfavorable resolution of one or more pending litigation or regulatory matters could have a material adverse effect on the Company’s financial position. Management believes, however, that, based on information currently known to it, the ultimate outcome of all pending litigation and regulatory matters, after consideration of applicable reserves and rights to indemnification, is not likely to have a material adverse effect on the Company’s financial position.

Significant Accounting Polici_2

Significant Accounting Policies and Pronouncements (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The Unaudited Interim Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) on a basis consistent with reporting interim financial information in accordance with instructions to Form 10-Q and Article 10 of Regulation S-X of the Securities and Exchange Commission (“SEC”). Intercompany balances and transactions have been eliminated. In the opinion of management, all adjustments necessary for a fair statement of the financial position and results of operations have been made. All such adjustments are of a normal, recurring nature. Interim results are not necessarily indicative of the results that may be expected for the full year. These financial statements should be read in conjunction with the Company’s Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 .
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The most significant estimates include those used in determining deferred policy acquisition costs ("DAC") and related amortization; amortization of deferred sales inducements ("DSI"); valuation of investments including derivatives and the recognition of other-than-temporary impairments (“OTTI”); future policy benefits including guarantees; reinsurance recoverables; provision for income taxes and valuation of deferred tax assets; and accruals for contingent liabilities, including estimates for losses in connection with unresolved legal and regulatory matters.
Reclassifications	Reclassifications Certain amounts in prior periods have been reclassified to conform to the current period presentation.
Adoption of New Accounting Pronouncements	Recent Accounting Pronouncements Changes to U.S. GAAP are established by the Financial Accounting Standards Board ("FASB") in the form of Accounting Standards Updates ("ASU") to the FASB Accounting Standards Codification. The Company considers the applicability and impact of all ASU. ASU listed below include those that have been adopted during the current fiscal year and/or those that have been issued but not yet adopted as of the date of this filing. ASU not listed below were assessed and determined to be either not applicable or not material. ASU adopted during the six months ended June 30, 2019 . Standard Description Effective date and method of adoption Effect on the financial statements or other significant matters ASU 2017-08, Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20) Premium Amortization on Purchased Callable Debt Securities This ASU requires certain premiums on callable debt securities to be amortized to the earliest call date. January 1, 2019 using the modified retrospective method which included cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. Adoption of the ASU did not have a significant impact on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements. The impact of the cumulative-effect adjustment to retained earnings was immaterial. ASU 2017-12, Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities This ASU makes targeted changes to the existing hedge accounting model to better portray the economics of an entity’s risk management activities and to simplify the use of hedge accounting. The ASU eliminates separate measurement and recording of hedge ineffectiveness. It requires entities to present the earnings effect of the hedging instrument in the same income statement line item in which the hedged item is reported and also requires expanded disclosures. January 1, 2019 using the modified retrospective method which included cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. Adoption of the ASU did not have a significant impact on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements. The impact of the cumulative-effect adjustment to retained earnings and accumulated other comprehensive income (loss) ("AOCI") related to ineffectiveness of the hedge instruments outstanding at the date of the adoption was immaterial. See Note 4 for additional required disclosures.
Future Adoption Of New Accounting Pronouncements	ASU issued but not yet adopted as of June 30, 2019 — ASU 2018-12 ASU 2018-12, Financial Services - Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts, was issued by the FASB on August 15, 2018 and is expected to have a significant impact on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements. In July 2019, the FASB made a tentative decision to defer the effective date of this ASU to January 1, 2022 (with early adoption permitted), representing a one year extension from the original effective date of January 1, 2021. A final decision regarding the effective date is expected in the third quarter of 2019. This ASU will impact, at least to some extent, the accounting and disclosure requirements for all long-duration insurance and investment contracts issued by the Company. Outlined below are four key areas of change, although there are other changes not noted below. In addition to the impacts to the balance sheet upon adoption, the Company also expects an impact to how earnings emerge thereafter. ASU 2018-12 Amended Topic Description Method of adoption Effect on the financial statements or other significant matters Cash flow assumptions used to measure the liability for future policy benefits for non-participating traditional and limited-pay insurance products Requires an entity to review, and if necessary, update the cash flow assumptions used to measure the liability for future policy benefits, for both changes in future assumptions and actual experience, at least annually using a retrospective update method with a cumulative catch-up adjustment recorded in a separate line item in the Consolidated Statements of Operations. An entity may choose one of two adoption methods for the liability for future policy benefits: (1) a modified retrospective transition method whereby the entity will apply the amendments to contracts in force as of the beginning of the earliest period presented on the basis of their existing carrying amounts, adjusted for the removal of any related amounts in AOCI or (2) a full retrospective transition method. The options for method of adoption and the impacts of such methods are under assessment. Discount rate assumption used to measure the liability for future policy benefits for non-participating traditional and limited-pay insurance products Requires discount rate assumptions to be based on an upper-medium grade fixed income instrument yield and will be required to be updated each quarter with the impact recorded through Other Comprehensive Income ("OCI"). As noted above, an entity may choose either a modified retrospective transition method or full retrospective transition method for the liability for future policy benefits. Under either method, for balance sheet remeasurement purposes, the liability for future policy benefits will be remeasured using current discount rates as of the beginning of the earliest period presented with the impact recorded as a cumulative effect adjustment to AOCI. Upon adoption, under either transition method, there will be an adjustment to AOCI as a result of remeasuring in force contract liabilities using current upper-medium grade fixed income instrument yields. The adjustment upon adoption will largely reflect the difference between the discount rate locked-in at contract inception versus current discount rates at transition. The magnitude of such adjustment is currently being assessed. Amortization of DAC and other balances Requires DAC and other balances, such as unearned revenue reserves and DSI, to be amortized on a constant level basis over the expected term of the related contract, independent of expected profitability. An entity may apply one of two adoption methods: (1) a modified retrospective transition method whereby the entity will apply the amendments to contracts in force as of the beginning of the earliest period presented on the basis of their existing carrying amounts, adjusted for the removal of any related amounts in AOCI or (2) if an entity chooses a full retrospective transition method for its future policy benefits, as described above, it is required to also use a retrospective transition method for DAC and other balances. The options for method of adoption and the impacts of such methods are under assessment. Under the modified retrospective transition method, the Company would not expect a significant impact to the balance sheet, other than the impact of the removal of any related amounts in AOCI. Market Risk Benefits Requires an entity to measure all market risk benefits (e.g., living benefit and death benefit guarantees associated with variable annuities) at fair value with changes in value attributable to changes in an entity’s non-performance risk ("NPR") to be recognized in OCI. An entity will apply a retrospective transition method which will include a cumulative-effect adjustment on the balance sheet as of the earliest period presented. Upon adoption, the Company expects an impact to retained earnings for the difference between the fair value and carrying value of benefits not currently measured at fair value (e.g., guaranteed minimum death benefits on variable annuities) and an impact from reclassifying the cumulative effect of changes in NPR from retained earnings to AOCI. The magnitude of such adjustments is currently being assessed. Other ASU issued but not yet adopted as of June 30, 2019 Standard Description Effective date and method of adoption Effect on the financial statements or other significant matters ASU 2016-13 , Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments This ASU provides a new current expected credit loss model to account for credit losses on certain financial assets and off-balance sheet exposures (e.g., loans held for investment, debt securities held to maturity, reinsurance receivables, net investments in leases and loan commitments). The model requires an entity to estimate lifetime credit losses related to such financial assets and exposures based on relevant information about past events, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. The standard also modifies the current other-than-temporary impairment standard for available-for-sale debt securities to require the use of an allowance rather than a direct write down of the investment, and replaces existing standard for purchased credit deteriorated loans and debt securities. January 1, 2020 using the modified retrospective method which will include a cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. However, prospective application is required for purchased credit deteriorated assets previously accounted for under ASU 310-30 and for debt securities for which an other-than-temporary-impairment was recognized prior to the date of adoption. Early adoption is permitted beginning January 1, 2019. The Company is continuing to develop its expected credit loss models and related systems, processes and controls for assets held on the Consolidated Statement of Financial Position at amortized cost, the most significant of which are the commercial mortgage and other loans. The allowance for credit losses will likely increase when the ASU is adopted to cover expected credit losses over the lifetime of the commercial mortgage and other loans, incorporating reasonable and supportable forecasts and expected changes in future economic conditions. The extent of the impact of adoption of this ASU on the Company’s Consolidated Financial Statements and Notes to the Consolidated Financial Statements will depend on various factors including the economic environment and the size and type of the commercial mortgage and other loans held on the date of adoption.

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2019
Investments [Abstract]
Fixed Maturities, Available-for-sale Securities	The following tables set forth the composition of fixed maturity securities (excluding investments classified as trading), as of the dates indicated: June 30, 2019 Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI in AOCI(3) (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 79,486 $ 3,116 $ 0 $ 82,602 $ 0 Obligations of U.S. states and their political subdivisions 607,413 46,606 0 654,019 0 Foreign government bonds 210,007 18,321 14 228,314 0 U.S. public corporate securities 2,046,091 188,116 5,626 2,228,581 0 U.S. private corporate securities 895,094 37,967 5,825 927,236 0 Foreign public corporate securities 290,982 20,330 1,955 309,357 0 Foreign private corporate securities 904,665 36,202 22,921 917,946 0 Asset-backed securities(1) 139,728 1,481 287 140,922 (79 ) Commercial mortgage-backed securities 366,856 14,736 10 381,582 0 Residential mortgage-backed securities(2) 83,371 2,531 70 85,832 (152 ) Total fixed maturities, available-for-sale $ 5,623,693 $ 369,406 $ 36,708 $ 5,956,391 $ (231 ) (1) Includes credit-tranched securities collateralized by loan obligations, sub-prime mortgages, auto loans, education loans and other asset types. (2) Includes publicly-traded agency pass-through securities and collateralized mortgage obligations. (3) Represents the amount of unrealized losses remaining in AOCI, from the impairment measurement date. Amount excludes $0.7 million of net unrealized gains on impaired available-for-sale securities relating to changes in the value of such securities subsequent to the impairment measurement date. December 31, 2018 Amortized Gross Unrealized Gains Gross Unrealized Losses Fair Value OTTI in AOCI(3) (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 75,049 $ 2,427 $ 6 $ 77,470 $ 0 Obligations of U.S. states and their political subdivisions 609,955 15,154 2,351 622,758 0 Foreign government bonds 208,009 2,137 8,199 201,947 0 U.S. public corporate securities 1,739,860 46,166 54,401 1,731,625 0 U.S. private corporate securities 890,748 11,181 18,591 883,338 0 Foreign public corporate securities 270,428 3,746 12,151 262,023 0 Foreign private corporate securities 857,604 9,797 40,022 827,379 0 Asset-backed securities(1) 156,818 1,528 750 157,596 (122 ) Commercial mortgage-backed securities 347,570 3,353 4,527 346,396 0 Residential mortgage-backed securities(2) 88,862 1,268 1,067 89,063 (177 ) Total fixed maturities, available-for-sale $ 5,244,903 $ 96,757 $ 142,065 $ 5,199,595 $ (299 ) (1) Includes credit-tranched securities collateralized by loan obligations, sub-prime mortgages, auto loans, credit cards, education loans and other asset types. (2) Includes publicly-traded agency pass-through securities and collateralized mortgage obligations. (3) Represents the amount of unrealized losses remaining in AOCI, from the impairment measurement date. Amount excludes $0.4 million of net unrealized losses on impaired available-for-sale securities relating to changes in the value of such securities subsequent to the impairment measurement date.
Duration Of Gross Unrealized Losses On Fixed Maturity Securities	The following tables set forth the fair value and gross unrealized losses aggregated by investment category and length of time that individual fixed maturity securities had been in a continuous unrealized loss position, as of the dates indicated: June 30, 2019 Less Than Twelve Months Twelve Months or More Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 Obligations of U.S. states and their political subdivisions 0 0 0 0 0 0 Foreign government bonds 0 0 8,511 14 8,511 14 U.S. public corporate securities 9,171 69 140,380 5,557 149,551 5,626 U.S. private corporate securities 24,292 3,547 54,624 2,278 78,916 5,825 Foreign public corporate securities 815 0 33,148 1,955 33,963 1,955 Foreign private corporate securities 80,817 1,041 184,542 21,880 265,359 22,921 Asset-backed securities 75,417 233 15,424 54 90,841 287 Commercial mortgage-backed securities 0 0 2,961 10 2,961 10 Residential mortgage-backed securities 0 0 7,947 70 7,947 70 Total fixed maturities, available-for-sale $ 190,512 $ 4,890 $ 447,537 $ 31,818 $ 638,049 $ 36,708 December 31, 2018 Less Than Twelve Months Twelve Months or More Total Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses Fair Value Gross Unrealized Losses (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 0 $ 630 $ 6 $ 630 $ 6 Obligations of U.S. states and their political subdivisions 124,776 1,571 31,215 780 155,991 2,351 Foreign government bonds 77,055 3,184 59,700 5,015 136,755 8,199 U.S. public corporate securities 784,916 37,635 213,147 16,766 998,063 54,401 U.S. private corporate securities 263,934 9,159 287,031 9,432 550,965 18,591 Foreign public corporate securities 124,764 6,286 72,725 5,865 197,489 12,151 Foreign private corporate securities 424,921 22,605 127,201 17,417 552,122 40,022 Asset-backed securities 112,527 650 6,523 100 119,050 750 Commercial mortgage-backed securities 49,616 434 116,786 4,093 166,402 4,527 Residential mortgage-backed securities 34,249 240 32,432 827 66,681 1,067 Total fixed maturities, available-for-sale $ 1,996,758 $ 81,764 $ 947,390 $ 60,301 $ 2,944,148 $ 142,065
Fixed Maturities Classified by Contractual Maturity Date	The following table sets forth the amortized cost and fair value of fixed maturities by contractual maturities, as of the date indicated: June 30, 2019 Amortized Cost Fair Value (in thousands) Fixed maturities, available-for-sale: Due in one year or less $ 162,744 $ 164,151 Due after one year through five years 701,515 707,518 Due after five years through ten years 1,005,349 1,046,082 Due after ten years 3,164,130 3,430,304 Asset-backed securities 139,728 140,922 Commercial mortgage-backed securities 366,856 381,582 Residential mortgage-backed securities 83,371 85,832 Total fixed maturities, available-for-sale $ 5,623,693 $ 5,956,391
Sources of Fixed Maturity Proceeds, Realized Investment Gains (Losses), and Losses on Impairments	The following table sets forth the sources of fixed maturity proceeds and related investment gains (losses), as well as losses on impairments of fixed maturities, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Fixed maturities, available-for-sale: Proceeds from sales(1) $ 28,231 $ 117,235 $ 53,018 $ 134,087 Proceeds from maturities/prepayments 75,554 85,808 128,429 140,118 Gross investment gains from sales and maturities (1,384 ) (30 ) (435 ) 114 Gross investment losses from sales and maturities (1,105 ) (3,231 ) (3,075 ) (3,590 ) OTTI recognized in earnings(2) 0 (57 ) (3,163 ) (651 ) (1) Includes $2.1 million and $26.2 million of non-cash related proceeds due to the timing of trade settlements for the six months ended June 30, 2019 and 2018 , respectively. (2) Excludes the portion of OTTI amounts remaining in OCI, representing any difference between the fair value of the impaired debt security and the net present value of its projected future cash flows at the time of the impairment.
Credit Losses Recognized in Earnings on Fixed Maturity Securities Held by the Company for which a Portion of the OTTI Loss was Recognized in OCI	The following table sets forth a rollforward of pre-tax amounts remaining in OCI related to fixed maturity securities with credit loss impairments recognized in earnings, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Credit loss impairments: Balance, beginning of period $ 3,610 $ 4,344 $ 1,291 $ 4,374 New credit loss impairments 0 0 3,022 0 Increases due to the passage of time on previously recorded credit losses 20 10 30 47 Reductions for securities which matured, paid down, prepaid or were sold during the period (33 ) (1,918 ) (626 ) (1,960 ) Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected (11 ) (454 ) (131 ) (479 ) Balance, end of period $ 3,586 $ 1,982 $ 3,586 $ 1,982
Commercial Mortgage and Other Loans	The following table sets forth the composition of “Commercial mortgage and other loans,” as of the dates indicated: June 30, 2019 December 31, 2018 Amount (in thousands) % of Total Amount (in thousands) % of Total Commercial mortgage and agricultural property loans by property type: Apartments/Multi-Family $ 355,719 29.0 % $ 362,811 29.9 % Hospitality 15,853 1.3 16,083 1.3 Industrial 286,521 23.2 263,999 21.8 Office 197,159 16.1 187,450 15.5 Other 129,617 10.6 131,961 10.9 Retail 189,040 15.4 193,473 16.0 Total commercial mortgage loans 1,173,909 95.6 1,155,777 95.4 Agricultural property loans 53,718 4.4 55,438 4.6 Total commercial mortgage and agricultural property loans by property type 1,227,627 100.0 % 1,211,215 100.0 % Allowance for credit losses (1,959 ) (2,065 ) Total commercial mortgage and other loans $ 1,225,668 $ 1,209,150
Allowance for Credit Losses	The following table sets forth the activity in the allowance for credit losses for commercial mortgage and other loans, as of the dates indicated: Commercial Mortgage Loans Agricultural Property Loans Total (in thousands) Balance at December 31, 2017 $ 1,728 $ 66 $ 1,794 Addition to (release of) allowance for credit losses 298 (27 ) 271 Charge-offs, net of recoveries 0 0 0 Balance at December 31, 2018 2,026 39 2,065 Addition to (release of) allowance for credit losses (107 ) 1 (106 ) Charge-offs, net of recoveries 0 0 0 Balance at June 30, 2019 $ 1,919 $ 40 $ 1,959
Allowance for Credit Losses and Recorded Investment in Commercial Mortgage and Other Loans	The following tables set forth the allowance for credit losses and the recorded investment in commercial mortgage and other loans, as of the dates indicated: June 30, 2019 Commercial Mortgage Loans Agricultural Property Loans Total (in thousands) Allowance for credit losses: Individually evaluated for impairment $ 0 $ 0 $ 0 Collectively evaluated for impairment 1,919 40 1,959 Total ending balance(1) $ 1,919 $ 40 $ 1,959 Recorded investment(2): Individually evaluated for impairment $ 0 $ 0 $ 0 Collectively evaluated for impairment 1,173,909 53,718 1,227,627 Total ending balance(1) $ 1,173,909 $ 53,718 $ 1,227,627 (1) As of June 30, 2019 , there were no loans acquired with deteriorated credit quality. (2) Recorded investment reflects the carrying value gross of related allowance. December 31, 2018 Commercial Mortgage Loans Agricultural Property Loans Total (in thousands) Allowance for credit losses: Individually evaluated for impairment $ 0 $ 0 $ 0 Collectively evaluated for impairment 2,026 39 2,065 Total ending balance(1) $ 2,026 $ 39 $ 2,065 Recorded investment(2): Individually evaluated for impairment $ 0 $ 816 $ 816 Collectively evaluated for impairment 1,155,777 54,622 1,210,399 Total ending balance(1) $ 1,155,777 $ 55,438 $ 1,211,215 (1) As of December 31, 2018 , there were no loans acquired with deteriorated credit quality. (2) Recorded investment reflects the carrying value gross of related allowance.
Financing Receivable Credit Quality Indicators	The following tables set forth certain key credit quality indicators for commercial mortgage and agricultural property loans based upon the recorded investment gross of allowance for credit losses, as of the dates indicated: June 30, 2019 Debt Service Coverage Ratio ≥ 1.2X 1.0X to < 1.2X < 1.0X Total (in thousands) Loan-to-Value Ratio: 0%-59.99% $ 714,155 $ 13,715 $ 815 $ 728,685 60%-69.99% 324,198 17,070 0 341,268 70%-79.99% 134,531 22,916 0 157,447 80% or greater 0 0 227 227 Total commercial mortgage and agricultural property loans $ 1,172,884 $ 53,701 $ 1,042 $ 1,227,627 December 31, 2018 Debt Service Coverage Ratio ≥ 1.2X 1.0X to < 1.2X < 1.0X Total (in thousands) Loan-to-Value Ratio: 0%-59.99% $ 696,507 $ 12,771 $ 80 $ 709,358 60%-69.99% 321,586 18,525 0 340,111 70%-79.99% 105,727 27,790 0 133,517 80% or greater 28,000 229 0 28,229 Total commercial mortgage and agricultural property loans $ 1,151,820 $ 59,315 $ 80 $ 1,211,215
Aging of Past Due Commercial Mortgage and Other Loans and Nonaccrual Status	The following tables set forth an aging of past due commercial mortgage and other loans based upon the recorded investment gross of allowance for credit losses, as well as the amount of commercial mortgage and other loans on non-accrual status, as of the dates indicated: June 30, 2019 Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due(1) Total Loans Non-Accrual Status(2) (in thousands) Commercial mortgage loans $ 1,173,909 $ 0 $ 0 $ 0 $ 1,173,909 $ 0 Agricultural property loans 53,718 0 0 0 53,718 0 Total $ 1,227,627 $ 0 $ 0 $ 0 $ 1,227,627 $ 0 (1) As of June 30, 2019 , there were no loans in this category accruing interest. (2) For additional information regarding the Company’s policies for accruing interest on loans, see Note 2 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 . December 31, 2018 Current 30-59 Days Past Due 60-89 Days Past Due 90 Days or More Past Due(1) Total Loans Non-Accrual Status(2) (in thousands) Commercial mortgage loans $ 1,155,777 $ 0 $ 0 $ 0 $ 1,155,777 $ 0 Agricultural property loans 55,438 0 0 0 55,438 0 Total $ 1,211,215 $ 0 $ 0 $ 0 $ 1,211,215 $ 0 (1) As of December 31, 2018 , there were no loans in this category accruing interest. (2) For additional information regarding the Company’s policies for accruing interest on loans, see Note 2 to the Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 .
Other Invested Assets	The following table sets forth the composition of “Other invested assets,” as of the dates indicated: June 30, 2019 December 31, 2018 (in thousands) Company’s investment in separate accounts $ 43,497 $ 40,126 LPs/LLCs: Equity method: Private equity 183,095 149,164 Hedge funds 61,090 57,171 Real estate-related 19,753 10,251 Subtotal equity method 263,938 216,586 Fair value: Private equity 57,156 60,118 Hedge funds 778 762 Real estate-related 11,290 9,024 Subtotal fair value 69,224 69,904 Total LPs/LLCs 333,162 286,490 Derivative instruments 18,292 50,813 Total other invested assets $ 394,951 $ 377,429
Net Investment Income	The following table sets forth “Net investment income” by investment type, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Fixed maturities, available-for-sale $ 59,370 $ 55,195 $ 115,636 $ 108,455 Fixed maturities, trading 326 272 634 538 Equity securities, at fair value 221 221 442 442 Commercial mortgage and other loans 13,435 12,303 25,926 24,708 Policy loans 16,766 16,329 32,965 32,233 Short-term investments and cash equivalents 1,839 114 4,150 437 Other invested assets 18,060 1,743 27,971 1,858 Gross investment income 110,017 86,177 207,724 168,671 Less: investment expenses (4,455 ) (4,528 ) (8,912 ) (9,107 ) Net investment income $ 105,562 $ 81,649 $ 198,812 $ 159,564
Realized Investment Gains (Losses), Net	The following table sets forth “Realized investment gains (losses), net” by investment type, for the periods indicated: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Fixed maturities(1) $ (2,489 ) $ (3,318 ) $ (6,673 ) $ (4,127 ) Commercial mortgage and other loans 99 (125 ) 106 6 LPs/LLCs 0 2 12 849 Derivatives (49,846 ) (33,448 ) (94,323 ) (82,641 ) Short-term investments and cash equivalents (14 ) (1 ) (7 ) (19 ) Realized investment gains (losses), net $ (52,250 ) $ (36,890 ) $ (100,885 ) $ (85,932 ) (1) Includes fixed maturity securities classified as available-for-sale and excludes fixed maturity securities classified as trading.
Unrealized Gains and (Losses) on Investments	The following table sets forth net unrealized gains (losses) on investments, as of the dates indicated: June 30, 2019 December 31, 2018 (in thousands) Fixed maturity securities, available-for-sale—with OTTI $ 535 $ (689 ) Fixed maturity securities, available-for-sale—all other 332,163 (44,619 ) Derivatives designated as cash flow hedges(1) 28,757 22,122 Affiliated notes 4,025 810 Other investments 5,067 5,055 Net unrealized gains (losses) on investments $ 370,547 $ (17,321 ) (1) For more information on cash flow hedges, see Note 4 .
Repurchase Agreements and Securities Lending	The following table sets forth the composition of “Cash collateral for loaned securities,” which represents the liability to return cash collateral received for the following types of securities loaned, as of the dates indicated: June 30, 2019 December 31, 2018 Remaining Contractual Maturities of the Agreements Remaining Contractual Maturities of the Agreements Overnight & Continuous Up to 30 Days Total Overnight & Continuous Up to 30 Days Total (in thousands) U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 0 $ 0 $ 8,169 $ 0 $ 8,169 U.S. public corporate securities 4,636 0 4,636 628 0 628 Foreign public corporate securities 2,447 0 2,447 2,266 0 2,266 Total cash collateral for loaned securities(1) $ 7,083 $ 0 $ 7,083 $ 11,063 $ 0 $ 11,063 (1) The Company did not have any agreements with remaining contractual maturities of thirty days or greater, as of the dates indicated.

Derivative Instruments (Tables)

Derivative Instruments (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The table below provides a summary of the gross notional amount and fair value of derivative contracts by the primary underlying risks, excluding embedded derivatives and associated reinsurance recoverables. Many derivative instruments contain multiple underlying risks. The fair value amounts below represent the value of derivative contracts prior to taking into account the netting effects of master netting agreements, cash collateral, and NPR. June 30, 2019 December 31, 2018 Primary Underlying Risk/Instrument Type Fair Value Fair Value Gross Notional Assets Liabilities Gross Notional Assets Liabilities (in thousands) Derivatives Designated as Hedge Accounting Instruments: Currency/Interest Rate Foreign Currency Swaps $ 751,074 $ 43,962 $ (15,484 ) $ 719,476 $ 38,333 $ (16,638 ) Total Derivatives Designated as Hedge Accounting Instruments $ 751,074 $ 43,962 $ (15,484 ) $ 719,476 $ 38,333 $ (16,638 ) Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate Interest Rate Swaps $ 596,925 $ 31,580 $ (4,511 ) $ 246,925 $ 15,665 $ (3,174 ) Foreign Currency Foreign Currency Forwards 27,935 262 (100 ) 23,043 277 (20 ) Credit Credit Default Swaps 0 0 0 756 0 (9 ) Currency/Interest Rate Foreign Currency Swaps 128,088 7,836 (1,244 ) 98,363 6,303 (2,109 ) Equity Equity Options 2,306,848 98,700 (32,489 ) 1,981,693 17,312 (4,912 ) Total Derivatives Not Qualifying as Hedge Accounting Instruments $ 3,059,796 $ 138,378 $ (38,344 ) $ 2,350,780 $ 39,557 $ (10,224 ) Total Derivatives(1)(2) $ 3,810,870 $ 182,340 $ (53,828 ) $ 3,070,256 $ 77,890 $ (26,862 ) (1) Excludes embedded derivatives and associated reinsurance recoverables which contain multiple underlying risks. (2) Recorded in “Other invested assets” and “Other liabilities” on the Unaudited Interim Consolidated Statements of Financial Position.
Offsetting Of Financial Assets	The following table presents recognized derivative instruments (excluding embedded derivatives and associated reinsurance recoverables), and repurchase and reverse repurchase agreements that are offset in the Unaudited Interim Consolidated Statements of Financial Position, and/or are subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset in the Unaudited Interim Consolidated Statements of Financial Position. June 30, 2019 Gross Amounts of Recognized Financial Instruments Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts Financial Instruments/ Collateral (1) Net Amount (in thousands) Offsetting of Financial Assets: Derivatives(1) $ 182,336 $ (163,984 ) $ 18,352 $ (18,352 ) $ 0 Securities purchased under agreements to resell 16,000 0 16,000 (16,000 ) 0 Total Assets $ 198,336 $ (163,984 ) $ 34,352 $ (34,352 ) $ 0 Offsetting of Financial Liabilities: Derivatives(1) $ 53,828 $ (53,828 ) $ 0 $ 0 $ 0 Securities sold under agreements to repurchase 0 0 0 0 0 Total Liabilities $ 53,828 $ (53,828 ) $ 0 $ 0 $ 0 December 31, 2018 Gross Amounts of Recognized Financial Instruments Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts Presented in the Consolidated Statements of Financial Position Financial Net Amount (in thousands) Offsetting of Financial Assets: Derivatives(1) $ 77,887 $ (27,078 ) $ 50,809 $ (7,307 ) $ 43,502 Securities purchased under agreements to resell 143,000 0 143,000 (143,000 ) 0 Total Assets $ 220,887 $ (27,078 ) $ 193,809 $ (150,307 ) $ 43,502 Offsetting of Financial Liabilities: Derivatives(1) $ 26,862 $ (26,862 ) $ 0 $ 0 $ 0 Securities sold under agreements to repurchase 0 0 0 0 0 Total Liabilities $ 26,862 $ (26,862 ) $ 0 $ 0 $ 0 (1) Amounts exclude the excess of collateral received/pledged from/to the counterparty.
Offsetting Of Financial Liabilities	The following table presents recognized derivative instruments (excluding embedded derivatives and associated reinsurance recoverables), and repurchase and reverse repurchase agreements that are offset in the Unaudited Interim Consolidated Statements of Financial Position, and/or are subject to an enforceable master netting arrangement or similar agreement, irrespective of whether they are offset in the Unaudited Interim Consolidated Statements of Financial Position. June 30, 2019 Gross Amounts of Recognized Financial Instruments Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts Financial Instruments/ Collateral (1) Net Amount (in thousands) Offsetting of Financial Assets: Derivatives(1) $ 182,336 $ (163,984 ) $ 18,352 $ (18,352 ) $ 0 Securities purchased under agreements to resell 16,000 0 16,000 (16,000 ) 0 Total Assets $ 198,336 $ (163,984 ) $ 34,352 $ (34,352 ) $ 0 Offsetting of Financial Liabilities: Derivatives(1) $ 53,828 $ (53,828 ) $ 0 $ 0 $ 0 Securities sold under agreements to repurchase 0 0 0 0 0 Total Liabilities $ 53,828 $ (53,828 ) $ 0 $ 0 $ 0 December 31, 2018 Gross Amounts of Recognized Financial Instruments Gross Amounts Offset in the Consolidated Statements of Financial Position Net Amounts Presented in the Consolidated Statements of Financial Position Financial Net Amount (in thousands) Offsetting of Financial Assets: Derivatives(1) $ 77,887 $ (27,078 ) $ 50,809 $ (7,307 ) $ 43,502 Securities purchased under agreements to resell 143,000 0 143,000 (143,000 ) 0 Total Assets $ 220,887 $ (27,078 ) $ 193,809 $ (150,307 ) $ 43,502 Offsetting of Financial Liabilities: Derivatives(1) $ 26,862 $ (26,862 ) $ 0 $ 0 $ 0 Securities sold under agreements to repurchase 0 0 0 0 0 Total Liabilities $ 26,862 $ (26,862 ) $ 0 $ 0 $ 0 (1) Amounts exclude the excess of collateral received/pledged from/to the counterparty.
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following tables provide the financial statement classification and impact of derivatives used in qualifying and non-qualifying hedge relationships, excluding the offset of the hedged item in an effective hedge relationship. Three Months Ended June 30, 2019 Realized Net Other AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ (88 ) $ 2,211 $ 1,482 $ 13,316 Total cash flow hedges (88 ) 2,211 1,482 13,316 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate 7,682 0 0 0 Currency 343 0 0 0 Currency/Interest Rate 1,673 0 4 0 Credit 0 0 0 0 Equity 12,666 0 0 0 Embedded Derivatives (72,122 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (49,758 ) 0 4 0 Total $ (49,846 ) $ 2,211 $ 1,486 $ 13,316 Six Months Ended June 30, 2019 Realized Net Other AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ (248 ) $ 4,280 $ (34 ) $ 6,662 Total cash flow hedges (248 ) 4,280 (34 ) 6,662 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate 15,297 0 0 0 Currency 323 0 0 0 Currency/Interest Rate 3,103 0 5 0 Credit (1 ) 0 0 0 Equity 41,529 0 0 0 Embedded Derivatives (154,326 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (94,075 ) 0 5 0 Total $ (94,323 ) $ 4,280 $ (29 ) $ 6,662 Three Months Ended June 30, 2018(2) Realized Investment Gains (Losses) Net Investment Income Other Income AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ 83 $ 1,611 $ 5,710 $ 31,519 Total cash flow hedges 83 1,611 5,710 31,519 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate (3,126 ) 0 0 0 Currency 1,221 0 0 0 Currency/Interest Rate 4,844 0 38 0 Credit 0 0 0 0 Equity 7,581 0 0 0 Embedded Derivatives (44,051 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (33,531 ) 0 38 0 Total $ (33,448 ) $ 1,611 $ 5,748 $ 31,519 Six Months Ended June 30, 2018(2) Realized Investment Gains (Losses) Net Investment Income Other Income AOCI(1) (in thousands) Derivatives Designated as Hedge Accounting Instruments: Cash flow hedges Currency/Interest Rate $ (433 ) $ 3,149 $ 5,046 $ 8,657 Total cash flow hedges (433 ) 3,149 5,046 8,657 Derivatives Not Qualifying as Hedge Accounting Instruments: Interest Rate (12,526 ) 0 0 0 Currency 665 0 0 0 Currency/Interest Rate 1,509 0 15 0 Credit (2 ) 0 0 0 Equity 2,824 0 0 0 Embedded Derivatives (74,678 ) 0 0 0 Total Derivatives Not Qualifying as Hedge Accounting Instruments (82,208 ) 0 15 0 Total $ (82,641 ) $ 3,149 $ 5,061 $ 8,657 (1) Net change in AOCI. (2) Prior period amounts have been updated to conform to current period presentation.
Schedule of Derivative Instruments Recognized in Accumulated Other Comprehensive Income (Loss) Before Taxes	Presented below is a rollforward of current period cash flow hedges in AOCI before taxes: (in thousands) Balance, December 31, 2018 $ 22,122 Cumulative-effect adjustment from the adoption of ASU 2017-12(1) (27 ) Amount recorded in AOCI Currency/Interest Rate 10,661 Total amount recorded in AOCI 10,661 Amount reclassified from AOCI to income Currency/Interest Rate (3,999 ) Total amount reclassified from AOCI to income (3,999 ) Balance, June 30, 2019 $ 28,757 (1) See Note 2 for details.

Fair Value of Assets and Liab_2

Fair Value of Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value, Assets and Liabilities Measured on Recurring Basis	The tables below present the balances of assets and liabilities reported at fair value on a recurring basis, as of the dates indicated. As of June 30, 2019 Level 1 Level 2 Level 3 Netting(1) Total (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 48,210 $ 34,392 $ 0 $ 82,602 Obligations of U.S. states and their political subdivisions 0 654,019 0 0 654,019 Foreign government bonds 0 228,149 165 0 228,314 U.S. corporate public securities 0 2,228,578 3 0 2,228,581 U.S. corporate private securities 0 885,288 41,948 0 927,236 Foreign corporate public securities 0 309,136 221 0 309,357 Foreign corporate private securities 0 906,104 11,842 0 917,946 Asset-backed securities(2) 0 138,297 2,625 0 140,922 Commercial mortgage-backed securities 0 381,582 0 0 381,582 Residential mortgage-backed securities 0 84,160 1,672 0 85,832 Subtotal 0 5,863,523 92,868 0 5,956,391 Fixed maturities, trading 0 48,812 605 0 49,417 Equity securities 116 553 17,105 0 17,774 Short-term investments 0 0 94 0 94 Cash equivalents 0 356,634 0 0 356,634 Other invested assets(3) 0 182,336 4 (163,984 ) 18,356 Reinsurance recoverables 0 0 8,485,905 0 8,485,905 Receivables from parent and affiliates 0 121,567 6,295 0 127,862 Subtotal excluding separate account assets 116 6,573,425 8,602,876 (163,984 ) 15,012,433 Separate account assets(4)(5) 0 128,180,358 0 0 128,180,358 Total assets $ 116 $ 134,753,783 $ 8,602,876 $ (163,984 ) $ 143,192,791 Future policy benefits(6) $ 0 $ 0 $ 8,476,541 $ 0 $ 8,476,541 Policyholders' account balances 0 0 786,969 0 786,969 Payables to parent and affiliates 0 53,828 0 (53,828 ) 0 Total liabilities $ 0 $ 53,828 $ 9,263,510 $ (53,828 ) $ 9,263,510 As of December 31, 2018 Level 1 Level 2 Level 3 Netting(1) Total (in thousands) Fixed maturities, available-for-sale: U.S. Treasury securities and obligations of U.S. government authorities and agencies $ 0 $ 47,654 $ 29,816 $ 0 $ 77,470 Obligations of U.S. states and their political subdivisions 0 622,758 0 0 622,758 Foreign government bonds 0 201,947 0 0 201,947 U.S. corporate public securities 0 1,731,623 2 0 1,731,625 U.S. corporate private securities 0 838,497 44,841 0 883,338 Foreign corporate public securities 0 262,023 0 0 262,023 Foreign corporate private securities 0 815,634 11,745 0 827,379 Asset-backed securities(2) 0 151,040 6,556 0 157,596 Commercial mortgage-backed securities 0 346,396 0 0 346,396 Residential mortgage-backed securities 0 89,063 0 0 89,063 Subtotal 0 5,106,635 92,960 0 5,199,595 Fixed maturities, trading 0 41,627 0 0 41,627 Equity securities 131 20,794 15,997 0 36,922 Short-term investments 0 0 0 0 0 Cash equivalents 69,903 147,043 0 0 216,946 Other invested assets(3) 0 77,886 4 (27,078 ) 50,812 Reinsurance recoverables 0 0 5,600,008 0 5,600,008 Receivables from parent and affiliates 0 125,381 9,261 0 134,642 Subtotal excluding separate account assets 70,034 5,519,366 5,718,230 (27,078 ) 11,280,552 Separate account assets(4)(5) 0 114,947,872 0 0 114,947,872 Total assets $ 70,034 $ 120,467,238 $ 5,718,230 $ (27,078 ) $ 126,228,424 Future policy benefits(6) $ 0 $ 0 $ 5,588,840 $ 0 $ 5,588,840 Policyholders' account balances 0 0 13,015 0 13,015 Payables to parent and affiliates 0 26,862 0 (26,862 ) 0 Total liabilities $ 0 $ 26,862 $ 5,601,855 $ (26,862 ) $ 5,601,855 (1) “Netting” amounts represent cash collateral of $110.2 million and $0.2 million as of June 30, 2019 and December 31, 2018 , respectively, and the impact of offsetting asset and liability positions held with the same counterparty, subject to master netting arrangements. (2) Includes credit-tranched securities collateralized by syndicated bank loans, sub-prime mortgages, auto loans, credit cards, education loans and other asset types. (3) Other invested assets excluded from the fair value hierarchy include certain hedge funds, private equity funds and other funds for which fair value is measured at net asset value ("NAV") per share (or its equivalent) as a practical expedient. As of June 30, 2019 and December 31, 2018 , the fair values of such investments were $69 million and $70 million , respectively. (4) Separate account assets included in the fair value hierarchy exclude investments in entities that calculate NAV per share (or its equivalent) as a practical expedient. Such investments excluded from the fair value hierarchy include investments in real estate, hedge funds and a corporate owned life insurance fund, for which fair value is measured at NAV per share (or its equivalent). As of June 30, 2019 and December 31, 2018 , the fair value of such investments was $4,552 million and $4,130 million , respectively. (5) Separate account assets represent segregated funds that are invested for certain customers. Investment risks associated with market value changes are borne by the customers, except to the extent of minimum guarantees made by the Company with respect to certain accounts. Separate account liabilities are not included in the above table as they are reported at contract value and not fair value in the Company's Unaudited Interim Consolidated Statements of Financial Position. (6) As of June 30, 2019 , the net embedded derivative liability position of $8,477 million includes $519 million of embedded derivatives in an asset position and $8,996 million of embedded derivatives in a liability position. As of December 31, 2018 , the net embedded derivative liability position of $5,589 million includes $633 million of embedded derivatives in an asset position and $6,222 million of embedded derivatives in a liability position.
Fair Value Inputs, Assets and Liabilities, Quantitative Information	The tables below present quantitative information on significant internally-priced Level 3 assets and liabilities. As of June 30, 2019 Fair Value Valuation Techniques Unobservable Inputs Minimum Maximum Weighted Average Impact of Increase in Input on Fair Value(1) (in thousands) Assets: Corporate securities(2) $ 23,086 Discounted cash flow Discount rate 8.34 % 15.17 % 12.03 % Decrease Market Comparables EBITDA multiples(3) 5.7 X 5.7 X 5.7 X Increase Liquidation Liquidation value 3.98 % 3.98 % 3.98 % Increase Reinsurance recoverables $ 8,485,905 Fair values are determined using the same unobservable inputs as future policy benefits. Liabilities: Future policy benefits(4) $ 8,476,541 Discounted cash flow Lapse rate(6) 1 % 18 % Decrease Spread over LIBOR(7) 0.16 % 1.24 % Decrease Utilization rate(8) 43 % 97 % Increase Withdrawal rate See table footnote (9) below Mortality rate(10) 0 % 15 % Decrease Equity volatility curve 13 % 23 % Increase Policyholders' account balances(5) $ 786,969 Discounted cash flow Lapse rate(6) 1 % 6 % Decrease Spread over LIBOR(7) 0.16 % 1.24 % Decrease Mortality rate(10) 0 % 24 % Decrease Equity volatility curve 10 % 23 % Increase As of December 31, 2018 Fair Value Valuation Techniques Unobservable Inputs Minimum Maximum Weighted Average Impact of Increase in Input on Fair Value(1) (in thousands) Assets: Corporate securities(2) $ 31,503 Discounted cash flow Discount rate 7 % 20 % 10.21 % Decrease Liquidation Liquidation value 40.71 % 40.71 % 40.71 % Increase Reinsurance recoverables $ 5,600,008 Fair values are determined using the same unobservable inputs as future policy benefits. Liabilities: Future policy benefits(4) $ 5,588,840 Discounted cash flow Lapse rate(6) 1 % 13 % Decrease Spread over LIBOR(7) 0.36 % 1.60 % Decrease Utilization rate(8) 50 % 97 % Increase Withdrawal rate See table footnote (9) below Mortality rate(10) 0 % 15 % Decrease Equity volatility curve 18 % 22 % Increase (1) Conversely, the impact of a decrease in input would have the opposite impact on fair value as that presented in the table. (2) Includes assets classified as fixed maturities, available-for-sale and fixed maturities trading. (3) Represents multiples of earnings before interest, taxes, depreciation and amortization ("EBITDA"), and are amounts used when the Company has determined that market participants would use such multiples when valuing the investments. (4) Future policy benefits primarily represent general account liabilities for the living benefit features of the Company’s variable annuity contracts which are accounted for as embedded derivatives. Since the valuation methodology for these liabilities uses a range of inputs that vary at the contract level over the cash flow projection period, presenting a range, rather than weighted average, is a more meaningful representation of the unobservable inputs used in the valuation. (5) Policyholders’ account balances primarily represent general account liabilities for the index-linked interest credited on certain of the Company’s life products that are accounted for as embedded derivatives. Since the valuation methodology for these liabilities uses a range of inputs that vary at the contract level over the cash flow projection period, presenting a range, rather than weighted average, is a more meaningful representation of the unobservable inputs used in the valuation. (6) Lapse rates for contracts with living benefit guarantees are adjusted at the contract level based on the in-the-moneyness of the living benefit and reflect other factors, such as the applicability of any surrender charges. Lapse rates are reduced when contracts are more in-the-money. Lapse rates for contracts with index-linked crediting guarantees may be adjusted at the contract level based on the applicability of any surrender charges, product type, and market related factors such as interest rates. Lapse rates are also generally assumed to be lower for the period where surrender charges apply. For any given contract, lapse rates vary throughout the period over which cash flows are projected for the purposes of valuing these embedded derivatives. (7) The spread over the London Inter-Bank Offered Rate ("LIBOR") swap curve represents the premium added to the proxy for the risk-free rate (LIBOR) to reflect the Company's estimates of rates that a market participant would use to value the living benefits in both the accumulation and payout phases and index-linked interest crediting guarantees. This spread includes an estimate of NPR, which is the risk that the obligation will not be fulfilled by the Company. NPR is primarily estimated by utilizing the credit spreads associated with issuing funding agreements, adjusted for any illiquidity risk premium. In order to reflect the financial strength ratings of the Company, credit spreads associated with funding agreements, as opposed to credit spread associated with debt, are utilized in developing this estimate because funding agreements, living benefit guarantees, and index-linked interest crediting guarantees are insurance liabilities and are therefore senior to debt. (8) The utilization rate assumption estimates the percentage of contracts that will utilize the benefit during the contract duration and begin lifetime withdrawals at various time intervals from contract inception. The remaining contractholders are assumed to either begin lifetime withdrawals immediately or never utilize the benefit. Utilization assumptions may vary by product type, tax status and age. The impact of changes in these assumptions is highly dependent on the product type, the age of the contractholder at the time of the sale, and the timing of the first lifetime income withdrawal. Range reflects the utilization rate for the vast majority of business with living benefits. (9) The withdrawal rate assumption estimates the magnitude of annual contractholder withdrawals relative to the maximum allowable amount under the contract. These assumptions vary based on the age of the contractholder, the tax status of the contract and the duration since the contractholder began lifetime withdrawals. As of June 30, 2019 and December 31, 2018 , the minimum withdrawal rate assumption is 78% and the maximum withdrawal rate assumption may be greater than 100% . The fair value of the liability will generally increase the closer the withdrawal rate is to 100% and decrease as the withdrawal rate moves further away from 100%. (10) The range reflects the mortality rates for the vast majority of business with living benefits and other contracts, with policyholders ranging from 45 to 90 years old. While the majority of living benefits have a minimum age requirement, certain other contracts do not have an age restriction. This results in contractholders with mortality rates approaching 0% for certain benefits. Mortality rates vary by product, age, and duration. A mortality improvement assumption is also incorporated into the overall mortality table.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following tables describe changes in fair values of Level 3 assets and liabilities as of the dates indicated, as well as the portion of gains or losses included in income attributable to unrealized gains or losses related to those assets and liabilities still held at the end of their respective periods. When a determination is made to classify assets and liabilities within Level 3, the determination is based on significance of the unobservable inputs in the overall fair value measurement. All transfers are based on changes in the observability of the valuation inputs, including the availability of pricing service information that the Company can validate. All transfers are generally reported at the value as of the beginning of the quarter in which transfers occur for any such assets still held at the end of the quarter. Three Months Ended June 30, 2019 Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 32,188 $ 0 $ 2,204 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 34,392 $ 0 Foreign government 164 1 0 0 0 0 0 0 0 165 0 Corporate securities(4) 54,960 234 791 (25 ) 0 (2,584 ) (1 ) 639 0 54,014 0 Structured securities(5) 79,804 42 0 (1 ) 0 (177 ) 0 1,700 (77,071 ) 4,297 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 0 0 751 0 605 (146 ) Equity securities 15,991 1,114 0 0 0 0 0 0 0 17,105 1,114 Other invested assets 4 0 0 0 0 0 0 0 0 4 0 Short-term investments 0 0 463 0 0 (369 ) 0 0 0 94 0 Reinsurance recoverables 6,468,704 1,773,188 244,013 0 0 0 0 0 0 8,485,905 1,833,209 Receivables from parent and affiliates 7,792 82 0 0 0 (1,579 ) 0 0 0 6,295 0 Liabilities: Future policy benefits (6,459,377 ) (1,775,097 ) 0 0 (242,067 ) 0 0 0 0 (8,476,541 ) (1,836,960 ) Policyholders' account balances(6) (53,136 ) (691,927 ) 0 0 (41,906 ) 0 0 0 0 (786,969 ) (691,376 ) Three Months Ended June 30, 2019 Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (665 ) $ 0 $ 678 $ 264 $ 0 $ 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 (146 ) Equity securities 0 1,114 0 0 0 1,114 Other invested assets 0 0 0 0 0 0 Short-term investments 0 0 0 0 0 0 Reinsurance recoverables 1,773,188 0 0 0 1,833,209 0 Receivables from parent and affiliates 0 0 0 82 0 0 Liabilities: Future policy benefits (1,775,097 ) 0 0 0 (1,836,960 ) 0 Policyholders' account balances (691,927 ) 0 0 0 (691,376 ) 0 Six Months Ended June 30, 2019 Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 29,816 $ 0 $ 4,576 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 34,392 $ 0 Foreign government 0 6 0 0 0 0 0 159 0 165 0 Corporate securities(4) 56,588 (3,178 ) 2,122 (53 ) 0 (9,681 ) 0 8,216 0 54,014 (3,163 ) Structured securities(5) 6,556 1,310 0 (2 ) 0 (4,156 ) 0 77,660 (77,071 ) 4,297 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 0 0 751 0 605 (146 ) Equity securities 15,997 1,108 0 0 0 0 0 0 0 17,105 1,108 Other invested assets 4 0 0 0 0 0 0 0 0 4 0 Short-term investments 0 0 463 0 0 (369 ) 0 0 0 94 0 Reinsurance recoverables 5,600,008 2,406,506 479,391 0 0 0 0 0 0 8,485,905 2,504,883 Receivables from parent and affiliates 9,261 193 0 0 0 (3,159 ) 0 0 0 6,295 0 Liabilities: Future policy benefits (5,588,840 ) (2,412,199 ) 0 0 (475,502 ) 0 0 0 0 (8,476,541 ) (2,510,576 ) Policyholders' account balances(6) (13,015 ) (725,541 ) 0 0 (48,413 ) 0 0 0 0 (786,969 ) (724,989 ) Six Months Ended June 30, 2019 Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (3,067 ) $ 0 $ 842 $ 363 $ (3,163 ) $ 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 (146 ) Equity securities 0 1,108 0 0 0 1,108 Other invested assets 0 0 0 0 0 0 Short-term investments 0 0 0 0 0 0 Reinsurance recoverables 2,406,506 0 0 0 2,504,883 0 Receivables from parent and affiliates 0 0 0 193 0 0 Liabilities: Future policy benefits (2,412,199 ) 0 0 0 (2,510,576 ) 0 Policyholders' account balances (725,541 ) 0 0 0 (724,989 ) 0 Three Months Ended June 30, 2018(7) Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 21,569 $ 0 $ 2,842 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 24,411 $ 0 Foreign government 166 (6 ) 0 0 0 0 0 0 160 0 Corporate securities(4) 72,615 (1,647 ) 3,125 (201 ) 0 (15,501 ) (1 ) 4,028 0 62,418 (49 ) Structured securities(5) 94,873 (184 ) 10,648 (196 ) 0 (4,871 ) 0 0 (80,609 ) 19,661 0 Other assets: Equity securities 17,039 (414 ) 0 0 0 0 0 0 0 16,625 (414 ) Other invested assets 10 (5 ) 0 0 0 0 0 0 0 5 (5 ) Short-term investments 1,194 0 1,870 0 0 (2,731 ) 0 0 0 333 (1 ) Cash equivalents 0 0 2,550 0 0 (1,986 ) 0 0 0 564 0 Reinsurance recoverables 4,214,114 (491,557 ) 221,324 0 0 0 0 0 0 3,943,881 (441,257 ) Receivables from parent and affiliates 6,531 0 0 0 0 0 0 0 (6,531 ) 0 0 Liabilities: Future policy benefits (4,191,373 ) 502,643 0 0 (228,243 ) 0 0 0 0 (3,916,973 ) 459,185 Policyholders' account balances(6) (39,516 ) (7,859 ) 0 0 0 5,429 0 0 0 (41,946 ) (7,860 ) Other liabilities (15,955 ) (10,535 ) 8,880 0 0 0 0 0 0 (17,610 ) (10,590 ) Three Months Ended June 30, 2018(7) Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (303 ) $ 0 $ (1,620 ) $ 86 $ (49 ) $ 0 Other assets: Equity securities 0 (414 ) 0 0 0 (414 ) Other invested assets (5 ) 0 0 0 (5 ) 0 Short-term investments 0 0 0 0 (1 ) 0 Reinsurance recoverables (491,557 ) 0 0 0 (441,257 ) 0 Receivables from parent and affiliates 0 0 0 0 0 0 Liabilities: Future policy benefits 502,643 0 0 0 459,185 0 Policyholders' account balances (7,859 ) 0 0 0 (7,860 ) 0 Other liabilities (10,535 ) 0 0 0 (10,590 ) 0 Six Months Ended June 30, 2018(7) Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 19,204 $ 0 $ 5,207 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 24,411 $ 0 Foreign government 0 (14 ) 0 0 0 0 174 0 0 160 0 Corporate securities(4) 75,421 (711 ) 4,147 (201 ) 0 (20,071 ) 14 4,028 (209 ) 62,418 (75 ) Structured securities(5) 111,028 (53 ) 10,838 (196 ) 0 (8,066 ) 0 13,513 (107,403 ) 19,661 0 Other assets: Equity securities 17,525 (900 ) 0 0 0 0 0 0 0 16,625 (900 ) Other invested assets 0 (4 ) 0 0 0 0 0 9 0 5 (4 ) Short-term investments 1,339 (18 ) 5,270 0 0 (6,244 ) (14 ) 0 0 333 (19 ) Cash equivalents 0 0 2,550 0 0 (1,986 ) 0 0 0 564 0 Reinsurance recoverables 5,457,649 (1,954,549 ) 440,781 0 0 0 0 0 0 3,943,881 (1,844,015 ) Receivables from parent and affiliates 0 (20 ) 0 0 0 0 0 6,551 (6,531 ) 0 0 Liabilities: Future policy benefits (5,452,583 ) 1,990,198 0 0 (454,588 ) 0 0 0 0 (3,916,973 ) 1,879,579 Policyholders' account balances(6) (46,651 ) (2,846 ) 0 0 0 7,551 0 0 0 (41,946 ) (2,847 ) Other liabilities 0 (35,315 ) 17,705 0 0 0 0 0 0 (17,610 ) (35,231 ) Six Months Ended June 30, 2018(7) Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (235 ) $ 0 $ (706 ) $ 163 $ (75 ) $ 0 Other assets: Equity securities 0 (900 ) 0 0 0 (900 ) Other invested assets (4 ) 0 0 0 (4 ) 0 Short-term investments (18 ) 0 0 0 (19 ) 0 Reinsurance recoverables (1,954,549 ) 0 0 0 (1,844,015 ) 0 Receivables from parent and affiliates 0 (20 ) 0 0 0 0 Liabilities: Future policy benefits 1,990,198 0 0 0 1,879,579 0 Policyholders' account balances (2,846 ) 0 0 0 (2,847 ) 0 Other liabilities (35,315 ) 0 0 0 (35,231 ) 0 (1) Realized investment gains (losses) on future policy benefits and reinsurance recoverables primarily represent the change in the fair value of the Company's living benefit guarantees on certain of its variable annuity contracts. (2) Other includes reclassifications of certain assets and liabilities between reporting categories. (3) Unrealized gains or losses related to assets still held at the end of the period do not include amortization or accretion of premiums and discounts. (4) Includes U.S. corporate public, U.S. corporate private, foreign corporate public and foreign corporate private securities. (5) Includes asset-backed, commercial mortgage-backed and residential mortgage-backed securities. (6) Issuances and settlements for Policyholders' account balances are presented net in the rollforward. (7) Prior period amounts have been updated to conform to current period presentation.
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation	The following tables describe changes in fair values of Level 3 assets and liabilities as of the dates indicated, as well as the portion of gains or losses included in income attributable to unrealized gains or losses related to those assets and liabilities still held at the end of their respective periods. When a determination is made to classify assets and liabilities within Level 3, the determination is based on significance of the unobservable inputs in the overall fair value measurement. All transfers are based on changes in the observability of the valuation inputs, including the availability of pricing service information that the Company can validate. All transfers are generally reported at the value as of the beginning of the quarter in which transfers occur for any such assets still held at the end of the quarter. Three Months Ended June 30, 2019 Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 32,188 $ 0 $ 2,204 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 34,392 $ 0 Foreign government 164 1 0 0 0 0 0 0 0 165 0 Corporate securities(4) 54,960 234 791 (25 ) 0 (2,584 ) (1 ) 639 0 54,014 0 Structured securities(5) 79,804 42 0 (1 ) 0 (177 ) 0 1,700 (77,071 ) 4,297 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 0 0 751 0 605 (146 ) Equity securities 15,991 1,114 0 0 0 0 0 0 0 17,105 1,114 Other invested assets 4 0 0 0 0 0 0 0 0 4 0 Short-term investments 0 0 463 0 0 (369 ) 0 0 0 94 0 Reinsurance recoverables 6,468,704 1,773,188 244,013 0 0 0 0 0 0 8,485,905 1,833,209 Receivables from parent and affiliates 7,792 82 0 0 0 (1,579 ) 0 0 0 6,295 0 Liabilities: Future policy benefits (6,459,377 ) (1,775,097 ) 0 0 (242,067 ) 0 0 0 0 (8,476,541 ) (1,836,960 ) Policyholders' account balances(6) (53,136 ) (691,927 ) 0 0 (41,906 ) 0 0 0 0 (786,969 ) (691,376 ) Three Months Ended June 30, 2019 Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (665 ) $ 0 $ 678 $ 264 $ 0 $ 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 (146 ) Equity securities 0 1,114 0 0 0 1,114 Other invested assets 0 0 0 0 0 0 Short-term investments 0 0 0 0 0 0 Reinsurance recoverables 1,773,188 0 0 0 1,833,209 0 Receivables from parent and affiliates 0 0 0 82 0 0 Liabilities: Future policy benefits (1,775,097 ) 0 0 0 (1,836,960 ) 0 Policyholders' account balances (691,927 ) 0 0 0 (691,376 ) 0 Six Months Ended June 30, 2019 Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 29,816 $ 0 $ 4,576 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 34,392 $ 0 Foreign government 0 6 0 0 0 0 0 159 0 165 0 Corporate securities(4) 56,588 (3,178 ) 2,122 (53 ) 0 (9,681 ) 0 8,216 0 54,014 (3,163 ) Structured securities(5) 6,556 1,310 0 (2 ) 0 (4,156 ) 0 77,660 (77,071 ) 4,297 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 0 0 751 0 605 (146 ) Equity securities 15,997 1,108 0 0 0 0 0 0 0 17,105 1,108 Other invested assets 4 0 0 0 0 0 0 0 0 4 0 Short-term investments 0 0 463 0 0 (369 ) 0 0 0 94 0 Reinsurance recoverables 5,600,008 2,406,506 479,391 0 0 0 0 0 0 8,485,905 2,504,883 Receivables from parent and affiliates 9,261 193 0 0 0 (3,159 ) 0 0 0 6,295 0 Liabilities: Future policy benefits (5,588,840 ) (2,412,199 ) 0 0 (475,502 ) 0 0 0 0 (8,476,541 ) (2,510,576 ) Policyholders' account balances(6) (13,015 ) (725,541 ) 0 0 (48,413 ) 0 0 0 0 (786,969 ) (724,989 ) Six Months Ended June 30, 2019 Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (3,067 ) $ 0 $ 842 $ 363 $ (3,163 ) $ 0 Other assets: Fixed maturities, trading 0 (146 ) 0 0 0 (146 ) Equity securities 0 1,108 0 0 0 1,108 Other invested assets 0 0 0 0 0 0 Short-term investments 0 0 0 0 0 0 Reinsurance recoverables 2,406,506 0 0 0 2,504,883 0 Receivables from parent and affiliates 0 0 0 193 0 0 Liabilities: Future policy benefits (2,412,199 ) 0 0 0 (2,510,576 ) 0 Policyholders' account balances (725,541 ) 0 0 0 (724,989 ) 0 Three Months Ended June 30, 2018(7) Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 21,569 $ 0 $ 2,842 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 24,411 $ 0 Foreign government 166 (6 ) 0 0 0 0 0 0 160 0 Corporate securities(4) 72,615 (1,647 ) 3,125 (201 ) 0 (15,501 ) (1 ) 4,028 0 62,418 (49 ) Structured securities(5) 94,873 (184 ) 10,648 (196 ) 0 (4,871 ) 0 0 (80,609 ) 19,661 0 Other assets: Equity securities 17,039 (414 ) 0 0 0 0 0 0 0 16,625 (414 ) Other invested assets 10 (5 ) 0 0 0 0 0 0 0 5 (5 ) Short-term investments 1,194 0 1,870 0 0 (2,731 ) 0 0 0 333 (1 ) Cash equivalents 0 0 2,550 0 0 (1,986 ) 0 0 0 564 0 Reinsurance recoverables 4,214,114 (491,557 ) 221,324 0 0 0 0 0 0 3,943,881 (441,257 ) Receivables from parent and affiliates 6,531 0 0 0 0 0 0 0 (6,531 ) 0 0 Liabilities: Future policy benefits (4,191,373 ) 502,643 0 0 (228,243 ) 0 0 0 0 (3,916,973 ) 459,185 Policyholders' account balances(6) (39,516 ) (7,859 ) 0 0 0 5,429 0 0 0 (41,946 ) (7,860 ) Other liabilities (15,955 ) (10,535 ) 8,880 0 0 0 0 0 0 (17,610 ) (10,590 ) Three Months Ended June 30, 2018(7) Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (303 ) $ 0 $ (1,620 ) $ 86 $ (49 ) $ 0 Other assets: Equity securities 0 (414 ) 0 0 0 (414 ) Other invested assets (5 ) 0 0 0 (5 ) 0 Short-term investments 0 0 0 0 (1 ) 0 Reinsurance recoverables (491,557 ) 0 0 0 (441,257 ) 0 Receivables from parent and affiliates 0 0 0 0 0 0 Liabilities: Future policy benefits 502,643 0 0 0 459,185 0 Policyholders' account balances (7,859 ) 0 0 0 (7,860 ) 0 Other liabilities (10,535 ) 0 0 0 (10,590 ) 0 Six Months Ended June 30, 2018(7) Fair Value, beginning of period Total realized and unrealized gains (losses)(1) Purchases Sales Issuances Settlements Other(2) Transfers into Level 3 Transfers out of Level 3 Fair Value, end of period Unrealized gains (losses) for assets still held(3) (in thousands) Fixed maturities, available-for-sale: U.S. government $ 19,204 $ 0 $ 5,207 $ 0 $ 0 $ 0 $ 0 $ 0 $ 0 $ 24,411 $ 0 Foreign government 0 (14 ) 0 0 0 0 174 0 0 160 0 Corporate securities(4) 75,421 (711 ) 4,147 (201 ) 0 (20,071 ) 14 4,028 (209 ) 62,418 (75 ) Structured securities(5) 111,028 (53 ) 10,838 (196 ) 0 (8,066 ) 0 13,513 (107,403 ) 19,661 0 Other assets: Equity securities 17,525 (900 ) 0 0 0 0 0 0 0 16,625 (900 ) Other invested assets 0 (4 ) 0 0 0 0 0 9 0 5 (4 ) Short-term investments 1,339 (18 ) 5,270 0 0 (6,244 ) (14 ) 0 0 333 (19 ) Cash equivalents 0 0 2,550 0 0 (1,986 ) 0 0 0 564 0 Reinsurance recoverables 5,457,649 (1,954,549 ) 440,781 0 0 0 0 0 0 3,943,881 (1,844,015 ) Receivables from parent and affiliates 0 (20 ) 0 0 0 0 0 6,551 (6,531 ) 0 0 Liabilities: Future policy benefits (5,452,583 ) 1,990,198 0 0 (454,588 ) 0 0 0 0 (3,916,973 ) 1,879,579 Policyholders' account balances(6) (46,651 ) (2,846 ) 0 0 0 7,551 0 0 0 (41,946 ) (2,847 ) Other liabilities 0 (35,315 ) 17,705 0 0 0 0 0 0 (17,610 ) (35,231 ) Six Months Ended June 30, 2018(7) Total realized and unrealized gains (losses) Unrealized gains (losses) for assets still held(3) Realized investment gains (losses), net(1) Other income (loss) Included in other comprehensive income (loss) Net investment income Realized investment gains (losses), net Other income (loss) (in thousands) Fixed maturities, available-for-sale $ (235 ) $ 0 $ (706 ) $ 163 $ (75 ) $ 0 Other assets: Equity securities 0 (900 ) 0 0 0 (900 ) Other invested assets (4 ) 0 0 0 (4 ) 0 Short-term investments (18 ) 0 0 0 (19 ) 0 Reinsurance recoverables (1,954,549 ) 0 0 0 (1,844,015 ) 0 Receivables from parent and affiliates 0 (20 ) 0 0 0 0 Liabilities: Future policy benefits 1,990,198 0 0 0 1,879,579 0 Policyholders' account balances (2,846 ) 0 0 0 (2,847 ) 0 Other liabilities (35,315 ) 0 0 0 (35,231 ) 0 (1) Realized investment gains (losses) on future policy benefits and reinsurance recoverables primarily represent the change in the fair value of the Company's living benefit guarantees on certain of its variable annuity contracts. (2) Other includes reclassifications of certain assets and liabilities between reporting categories. (3) Unrealized gains or losses related to assets still held at the end of the period do not include amortization or accretion of premiums and discounts. (4) Includes U.S. corporate public, U.S. corporate private, foreign corporate public and foreign corporate private securities. (5) Includes asset-backed, commercial mortgage-backed and residential mortgage-backed securities. (6) Issuances and settlements for Policyholders' account balances are presented net in the rollforward. (7) Prior period amounts have been updated to conform to current period presentation.
Fair Value Disclosure Financial Instruments Not Carried at Fair Value	The table below presents the carrying amount and fair value by fair value hierarchy level of certain financial instruments that are not reported at fair value. The financial instruments presented below are reported at carrying value on the Company’s Unaudited Interim Consolidated Statements of Financial Position. In some cases, as described below, the carrying amount equals or approximates fair value. June 30, 2019 Fair Value Carrying Amount(1) Level 1 Level 2 Level 3 Total Total (in thousands) Assets: Commercial mortgage and other loans $ 0 $ 0 $ 1,279,335 $ 1,279,335 $ 1,225,668 Policy loans 0 0 1,263,413 1,263,413 1,263,413 Cash and cash equivalents 42,863 16,000 0 58,863 58,863 Accrued investment income 0 93,167 0 93,167 93,167 Receivables from parent and affiliates 0 140,992 0 140,992 140,992 Other assets 0 29,764 0 29,764 29,764 Total assets $ 42,863 $ 279,923 $ 2,542,748 $ 2,865,534 $ 2,811,867 Liabilities: Policyholders’ account balances - investment contracts $ 0 $ 1,225,951 $ 278,802 $ 1,504,753 $ 1,505,223 Cash collateral for loaned securities 0 7,083 0 7,083 7,083 Payables to parent and affiliates 0 146,207 0 146,207 146,207 Other liabilities 0 341,498 0 341,498 341,498 Total liabilities $ 0 $ 1,720,739 $ 278,802 $ 1,999,541 $ 2,000,011 December 31, 2018 Fair Value Carrying Amount(1) Level 1 Level 2 Level 3 Total Total (in thousands) Assets: Commercial mortgage and other loans $ 0 $ 0 $ 1,214,350 $ 1,214,350 $ 1,209,150 Policy loans 0 0 1,236,077 1,236,077 1,236,077 Cash and cash equivalents 56,894 143,000 0 199,894 199,894 Accrued investment income 0 88,278 0 88,278 88,278 Receivables from parent and affiliates 0 154,938 0 154,938 154,938 Other assets 0 28,950 0 28,950 28,950 Total assets $ 56,894 $ 415,166 $ 2,450,427 $ 2,922,487 $ 2,917,287 Liabilities: Policyholders’ account balances - investment contracts $ 0 $ 1,206,747 $ 272,322 $ 1,479,069 $ 1,486,929 Cash collateral for loaned securities 0 11,063 0 11,063 11,063 Payables to parent and affiliates 0 229,345 0 229,345 229,345 Other liabilities 0 372,997 0 372,997 372,997 Total liabilities $ 0 $ 1,820,152 $ 272,322 $ 2,092,474 $ 2,100,334 (1) Carrying values presented herein differ from those in the Company’s Unaudited Interim Consolidated Statements of Financial Position because certain items within the respective financial statement captions are not considered financial instruments or are out of scope under authoritative guidance relating to disclosures of the fair value of financial instruments.

Reinsurance (Tables)

Reinsurance (Tables)	6 Months Ended
	Jun. 30, 2019
Reinsurance Disclosures [Abstract]
Reinsurance Impact on Statements of Financial Position	Reinsurance amounts included in the Company’s Unaudited Interim Consolidated Statements of Financial Position as of June 30, 2019 and December 31, 2018 were as follows: June 30, 2019 December 31, 2018 (in thousands) Reinsurance recoverables $ 38,946,785 $ 34,682,127 Policy loans (134,453 ) (130,502 ) Deferred policy acquisition costs (6,912,973 ) (7,267,847 ) Deferred sales inducements (557,073 ) (562,052 ) Other assets(1) 165,706 185,573 Policyholders’ account balances 4,959,484 5,004,112 Future policy benefits 3,914,630 3,376,048 Other liabilities(2) 787,950 621,856 (1) “Other assets” includes $0.1 million of unaffiliated activity as of both June 30, 2019 and December 31, 2018 . (2) “Other liabilities” includes $35 million and $27 million of unaffiliated activity as of June 30, 2019 and December 31, 2018 , respectively.
Reinsurance Recoverable by Counterparty	The reinsurance recoverables by counterparty are broken out below: June 30, 2019 December 31, 2018 (in thousands) PAR U $ 11,963,017 $ 11,444,032 PALAC 11,483,993 8,828,190 PURC 4,371,948 4,127,455 PARCC 2,480,256 2,527,690 GUL Re 2,110,403 2,017,810 PAR Term 1,726,036 1,678,745 Prudential Insurance 1,624,532 1,226,917 Prudential of Taiwan 1,426,279 1,414,669 Term Re 1,417,733 1,259,141 DART 220,163 119,946 Unaffiliated 122,425 37,532 Total reinsurance recoverables $ 38,946,785 $ 34,682,127
Reinsurance Impact on Statements of Operations and Comprehensive Income (Loss)	Reinsurance amounts, included in the Company’s Unaudited Interim Consolidated Statements of Operations and Comprehensive Income (Loss) for the three and six months ended June 30, were as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Premiums: Direct $ 476,986 $ 449,613 $ 939,257 $ 891,568 Assumed(1) 52 58 106 118 Ceded(2) (464,621 ) (434,768 ) (912,952 ) (868,868 ) Net premiums 12,417 14,903 26,411 22,818 Policy charges and fee income: Direct 1,106,725 717,264 1,959,920 1,563,511 Assumed 128,748 122,695 255,707 244,404 Ceded(3) (1,086,802 ) (670,955 ) (1,927,767 ) (1,509,756 ) Net policy charges and fee income 148,671 169,004 287,860 298,159 Net investment income: Direct 106,949 82,957 201,507 162,106 Assumed 407 385 803 758 Ceded (1,794 ) (1,693 ) (3,498 ) (3,300 ) Net investment income 105,562 81,649 198,812 159,564 Asset administration fees: Direct 87,951 86,695 171,819 173,728 Assumed 0 0 0 0 Ceded (83,990 ) (83,151 ) (164,201 ) (166,711 ) Net asset administration fees 3,961 3,544 7,618 7,017 Other income: Direct 20,030 12,093 39,828 29,346 Assumed(4) (1,271 ) (100 ) (1,471 ) (190 ) Ceded (39 ) 226 (62 ) 173 Amortization of reinsurance income (3,722 ) 3,859 (2,340 ) 6,045 Net other income 14,998 16,078 35,955 35,374 Realized investment gains (losses), net: Direct (1,783,941 ) 503,522 (2,419,452 ) 1,978,284 Assumed 0 0 0 0 Ceded(5) 1,731,691 (540,412 ) 2,318,567 (2,064,216 ) Realized investment gains (losses), net (52,250 ) (36,890 ) (100,885 ) (85,932 ) Policyholders’ benefits (including change in reserves): Direct 1,150,985 644,501 1,797,296 1,296,173 Assumed(6) 282,961 146,405 494,711 259,207 Ceded(7) (1,387,655 ) (750,465 ) (2,206,238 ) (1,463,203 ) Net policyholders’ benefits (including change in reserves) 46,291 40,441 85,769 92,177 Interest credited to policyholders’ account balances: Direct 118,420 121,478 213,111 246,212 Assumed 34,512 34,849 65,169 71,366 Ceded (102,222 ) (113,772 ) (183,373 ) (234,225 ) Net interest credited to policyholders’ account balances 50,710 42,555 94,907 83,353 Reinsurance expense allowances and general and administrative expenses, net of capitalization and amortization (573,978 ) (345,280 ) (917,993 ) (779,192 ) (1) "Premiums assumed" includes $0 million of unaffiliated activity for both the three months ended June 30, 2019 and 2018 , respectively and $0.1 million for both the six months ended June 30, 2019 and 2018 , respectively. (2) "Premiums ceded" includes $(0.1) million and $0 million of unaffiliated activity for the three months ended June 30, 2019 , and 2018 respectively and $(0.2) million and $0 million for the six months ended June 30, 2019 and 2018 , respectively. (3) "Policy charges and fee income ceded" includes $(7) million and $(4) million of unaffiliated activity for the three months ended June 30, 2019 and 2018 , respectively, and $(12) million and $(6) million for the six months ended June 30, 2019 and 2018, respectively. (4) "Other income assumed" includes $(1) million and $(0.1) million of unaffiliated activity for the three months ended June 30, 2019 and 2018 , respectively, and $(2) million and $(0.2) million for the six months ended June 30, 2019 and 2018, respectively. (5) “Realized investment gains (losses), net ceded” includes $42 million and $(10) million of unaffiliated activity for the three months ended June 30, 2019 and 2018 , respectively, and $56 million and $(48) million for the six months ended June 30, 2019 and 2018, respectively. (6) "Policyholders' benefits (including change in reserves) assumed" includes $0 million of unaffiliated activity for both the three months ended June 30, 2019 and 2018 , respectively, and $(0.2) million and $(0.1) million for the six months ended June 30, 2019 , and 2018, respectively. (7) "Policyholders' benefits (including change in reserves) ceded" includes $(2) million of unaffiliated activity for both the three months ended June 30, 2019 and 2018 , and $(4) million for both the six months ended June 30, 2019 and 2018.
Gross and Net Life Insurance in Force	The gross and net amounts of life insurance face amount in force as of June 30, 2019 and 2018 were as follows: 2019 2018 (in thousands) Direct gross life insurance face amount in force $ 966,542,451 $ 908,332,587 Assumed gross life insurance face amount in force 40,382,452 41,317,052 Reinsurance ceded (925,430,727 ) (876,823,569 ) Net life insurance face amount in force $ 81,494,176 $ 72,826,070

Equity (Tables)

Equity (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	The balance of and changes in each component of AOCI as of and for the six months ended June 30, 2019 and 2018 , are as follows: Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation Adjustment Net Unrealized Investment Gains (Losses)(1) Total Accumulated Other Comprehensive Income (Loss) (in thousands) Balance, December 31, 2018 $ (17,448 ) $ (10,848 ) $ (28,296 ) Change in OCI before reclassifications 7,007 332,927 339,934 Amounts reclassified from AOCI 0 10,672 10,672 Income tax benefit (expense) 2 (72,147 ) (72,145 ) Balance, June 30, 2019 $ (10,439 ) $ 260,604 $ 250,165 Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation Adjustment Net Unrealized Investment Gains (Losses)(1) Total Accumulated Other Comprehensive Income (Loss) (in thousands) Balance, December 31, 2017 $ (234 ) $ 165,580 $ 165,346 Change in OCI before reclassifications (6,590 ) (223,420 ) (230,010 ) Amounts reclassified from AOCI 0 (3,634 ) (3,634 ) Income tax benefit (expense) 1,384 47,679 49,063 Cumulative effect of adoption of ASU 2016-01 0 (1,539 ) (1,539 ) Cumulative effect of adoption of ASU 2018-02 (50 ) 30,499 30,449 Balance, June 30, 2018 $ (5,490 ) $ 15,165 $ 9,675 (1) Includes cash flow hedges of $29 million and $(18) million as of June 30, 2019 and December 31, 2018 , respectively, and $(9) million and $41 million as of June 30, 2018 and December 31, 2017 , respectively .
Reclassification out of Accumulated Other Comprehensive Income	Reclassifications out of Accumulated Other Comprehensive Income (Loss) Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 (in thousands) Amounts reclassified from AOCI (1)(2): Net unrealized investment gains (losses): Cash flow hedges - Currency/Interest rate(3) $ (4,393 ) $ 7,442 $ (3,999 ) $ 7,761 Net unrealized investment gains (losses) on available-for-sale securities (2,489 ) (3,318 ) (6,673 ) (4,127 ) Total net unrealized investment gains (losses)(4) (6,882 ) 4,124 (10,672 ) 3,634 Total reclassifications for the period $ (6,882 ) $ 4,124 $ (10,672 ) $ 3,634 (1) All amounts are shown before tax. (2) Positive amounts indicate gains/benefits reclassified out of AOCI. Negative amounts indicate losses/costs reclassified out of AOCI. (3) See Note 4 for additional information on cash flow hedges. (4) See table below for additional information on unrealized investment gains (losses), including the impact on deferred policy acquisition and other costs, future policy benefits, policyholders’ account balances and other liabilities.
OTTI Net Unrealized Investment Gains (Losses) AOCI Rollforward	The amounts for the periods indicated below, split between amounts related to fixed maturity securities on which an OTTI loss has been recognized, and all other net unrealized investment gains (losses), are as follows: Net Unrealized Investment Gains (Losses) on Fixed Maturity Securities on which an OTTI loss has been recognized Net Unrealized Gains (Losses) on Investments Deferred Policy Acquisition Costs and Other Costs(2) Future Policy Benefits, Policyholders' Account Balances and Other Liabilities(3) Deferred Income Tax (Liability) Benefit Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses) (in thousands) Balance, December 31, 2018 $ (689 ) $ (152 ) $ 37 $ (192 ) $ (996 ) Net investment gains (losses) on investments arising during the period 1,568 0 0 (329 ) 1,239 Reclassification adjustment for (gains) losses included in net income (137 ) 0 0 29 (108 ) Reclassification adjustment for OTTI (gains) losses excluded from net income(1) (207 ) 0 0 43 (164 ) Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 0 105 0 (22 ) 83 Impact of net unrealized investment (gains) losses on future policy benefits, policyholders' account balances and other liabilities 0 0 (127 ) 27 (100 ) Balance, June 30, 2019 $ 535 $ (47 ) $ (90 ) $ (444 ) $ (46 ) (1) Represents "transfers in" related to the portion of OTTI losses recognized during the period that were not recognized in earnings for securities with no prior OTTI loss. (2) "Other costs" primarily includes reinsurance recoverables and deferred reinsurance losses. (3) "Other liabilities" primarily includes reinsurance payables.
All Other Net Unrealized Investment Gains (Losses) in AOCI Rollforward	All Other Net Unrealized Investment Gains (Losses) in AOCI Net Unrealized Gains (Losses) on Investments(2) Deferred Policy Acquisition Costs and Other Costs(3) Future Policy Benefits, Policyholders' Account Balances and Other Liabilities(4) Deferred Income Tax (Liability) Benefit Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses) (in thousands) Balance, December 31, 2018 $ (16,632 ) $ (65,743 ) $ 68,005 $ 4,518 $ (9,852 ) Net investment gains (losses) on investments arising during the period 375,628 0 0 (78,873 ) 296,755 Reclassification adjustment for (gains) losses included in net income 10,809 0 0 (2,270 ) 8,539 Reclassification adjustment for OTTI (gains) losses excluded from net income(1) 207 0 0 (43 ) 164 Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 0 176,301 0 (37,019 ) 139,282 Impact of net unrealized investment (gains) losses on future policy benefits, policyholders' account balances and other liabilities 0 0 (220,548 ) 46,310 (174,238 ) Balance, June 30, 2019 $ 370,012 $ 110,558 $ (152,543 ) $ (67,377 ) $ 260,650 (1) Represents "transfers out" related to the portion of OTTI losses recognized during the period that were not recognized in earnings for securities with no prior OTTI loss. (2) Includes cash flow hedges. See Note 4 for information on cash flow hedges. (3) "Other costs" primarily includes reinsurance recoverables and deferred reinsurance losses. (4)

Related Party Transactions (Tab

Related Party Transactions (Tables)	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Affiliated Notes Receivable	Affiliated notes receivable included in “Receivables from parent and affiliates” at June 30, 2019 and December 31, 2018 were as follows: Maturity Dates Interest Rates June 30, 2019 December 31, 2018 (in thousands) U.S. dollar floating rate notes 2028 3.74% - 4.03 % $ 0 $ 6,502 U.S. dollar fixed rate notes 2020 - 2027 0.00% - 14.85 % 127,862 128,140 Total notes receivable - affiliated(1) $ 127,862 $ 134,642 (1) All notes receivable may be called for prepayment prior to the respective maturity dates under specified circumstances.
Affiliated Asset Transfers	The table below shows affiliated asset trades for the six months ended June 30, 2019 and for the year ended December 31, 2018 . Affiliate Date Transaction Security Type Fair Value Book Value APIC, Net of Tax Increase/(Decrease) Realized Investment Gain (Loss) (in thousands) DART January 2018 Purchase Other Invested Assets $ 21,457 $ 21,457 $ 0 $ 0 PALAC April 2018 Purchase Fixed Maturities $ 64,313 $ 64,313 $ 0 $ 0 GUL Re May 2018 Purchase Fixed Maturities $ 87,486 $ 87,486 $ 0 $ 0 GUL Re May 2018 Purchase Fixed Maturities $ 37,921 $ 37,921 $ 0 $ 0 Prudential Realty Securities, Inc. November 2018 Purchase Commercial Mortgages $ 3,259 $ 3,425 $ 0 $ (167 ) Prudential Insurance February 2019 Sale Commercial Mortgages $ 4,995 $ 5,000 $ (4 ) $ 0 PALAC April 2019 Sale Equity Securities $ 14,525 $ 13,466 $ 0 $ 1,059

Business and Basis of Present_2

Business and Basis of Presentation (Narrative) (Details) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019subsidiary
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number Of Subsidiaries		1
Indirect subsidiary dissolved in December 31, 2018
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Number Of Subsidiaries		1
Income (loss) from operations before income taxes and equity in earnings of operating joint venture
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Out of Period Adjustment | $	$ 11

Investments (Fixed Maturities S

Investments (Fixed Maturities Securities Excluding Investments Classified as Trading) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 5,623,693	$ 5,244,903
Fair Value	5,956,391	5,199,595
Fixed maturities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	5,623,693	5,244,903
Gross Unrealized Gains	369,406	96,757
Gross Unrealized Losses	36,708	142,065
Fair Value	5,956,391	5,199,595
Fixed maturities | U.S. Treasury securities and obligations of U.S. government authorities and agencies
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	79,486	75,049
Gross Unrealized Gains	3,116	2,427
Gross Unrealized Losses	0	6
Fair Value	82,602	77,470
Fixed maturities | Obligations of U.S. states and their political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	607,413	609,955
Gross Unrealized Gains	46,606	15,154
Gross Unrealized Losses	0	2,351
Fair Value	654,019	622,758
Fixed maturities | Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	210,007	208,009
Gross Unrealized Gains	18,321	2,137
Gross Unrealized Losses	14	8,199
Fair Value	228,314	201,947
Fixed maturities | U.S. public corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,046,091	1,739,860
Gross Unrealized Gains	188,116	46,166
Gross Unrealized Losses	5,626	54,401
Fair Value	2,228,581	1,731,625
Fixed maturities | U.S. private corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	895,094	890,748
Gross Unrealized Gains	37,967	11,181
Gross Unrealized Losses	5,825	18,591
Fair Value	927,236	883,338
Fixed maturities | Foreign public corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	290,982	270,428
Gross Unrealized Gains	20,330	3,746
Gross Unrealized Losses	1,955	12,151
Fair Value	309,357	262,023
Fixed maturities | Foreign private corporate securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	904,665	857,604
Gross Unrealized Gains	36,202	9,797
Gross Unrealized Losses	22,921	40,022
Fair Value	917,946	827,379
Fixed maturities | Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	139,728	156,818
Gross Unrealized Gains	1,481	1,528
Gross Unrealized Losses	287	750
Fair Value	140,922	157,596
Fixed maturities | Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	366,856	347,570
Gross Unrealized Gains	14,736	3,353
Gross Unrealized Losses	10	4,527
Fair Value	381,582	346,396
Fixed maturities | Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	83,371	88,862
Gross Unrealized Gains	2,531	1,268
Gross Unrealized Losses	70	1,067
Fair Value	85,832	89,063
OTTI | Fixed maturities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	(231)	(299)
Net Unrealized Gains (Losses)	700	400
OTTI | Fixed maturities | U.S. Treasury securities and obligations of U.S. government authorities and agencies
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | Obligations of U.S. states and their political subdivisions
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | U.S. public corporate securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | U.S. private corporate securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | Foreign public corporate securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | Foreign private corporate securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	(79)	(122)
OTTI | Fixed maturities | Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	0	0
OTTI | Fixed maturities | Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
OTTI in AOCI	$ (152)	$ (177)

Investments (Fair Value and Los

Investments (Fair Value and Losses by Investment Category and Length of Time in a Loss Position) (Details) - Fixed maturities - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	$ 190,512	$ 1,996,758
Less than Twelve Months, Gross Unrealized Losses	4,890	81,764
Twelve Months or More, Fair Value	447,537	947,390
Twelve Months or More, Gross Unrealized Losses	31,818	60,301
Total, Fair Value	638,049	2,944,148
Total, Gross Unrealized Losses	36,708	142,065
US Treasury securities and obligations of U.S. government authorities and agencies
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	0
Less than Twelve Months, Gross Unrealized Losses	0	0
Twelve Months or More, Fair Value	0	630
Twelve Months or More, Gross Unrealized Losses	0	6
Total, Fair Value	0	630
Total, Gross Unrealized Losses	0	6
Obligations of U.S. states and their political subdivisions
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	124,776
Less than Twelve Months, Gross Unrealized Losses	0	1,571
Twelve Months or More, Fair Value	0	31,215
Twelve Months or More, Gross Unrealized Losses	0	780
Total, Fair Value	0	155,991
Total, Gross Unrealized Losses	0	2,351
Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	77,055
Less than Twelve Months, Gross Unrealized Losses	0	3,184
Twelve Months or More, Fair Value	8,511	59,700
Twelve Months or More, Gross Unrealized Losses	14	5,015
Total, Fair Value	8,511	136,755
Total, Gross Unrealized Losses	14	8,199
U.S. public corporate securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	9,171	784,916
Less than Twelve Months, Gross Unrealized Losses	69	37,635
Twelve Months or More, Fair Value	140,380	213,147
Twelve Months or More, Gross Unrealized Losses	5,557	16,766
Total, Fair Value	149,551	998,063
Total, Gross Unrealized Losses	5,626	54,401
U.S. private corporate securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	24,292	263,934
Less than Twelve Months, Gross Unrealized Losses	3,547	9,159
Twelve Months or More, Fair Value	54,624	287,031
Twelve Months or More, Gross Unrealized Losses	2,278	9,432
Total, Fair Value	78,916	550,965
Total, Gross Unrealized Losses	5,825	18,591
Foreign public corporate securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	815	124,764
Less than Twelve Months, Gross Unrealized Losses	0	6,286
Twelve Months or More, Fair Value	33,148	72,725
Twelve Months or More, Gross Unrealized Losses	1,955	5,865
Total, Fair Value	33,963	197,489
Total, Gross Unrealized Losses	1,955	12,151
Foreign private corporate securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	80,817	424,921
Less than Twelve Months, Gross Unrealized Losses	1,041	22,605
Twelve Months or More, Fair Value	184,542	127,201
Twelve Months or More, Gross Unrealized Losses	21,880	17,417
Total, Fair Value	265,359	552,122
Total, Gross Unrealized Losses	22,921	40,022
Asset-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	75,417	112,527
Less than Twelve Months, Gross Unrealized Losses	233	650
Twelve Months or More, Fair Value	15,424	6,523
Twelve Months or More, Gross Unrealized Losses	54	100
Total, Fair Value	90,841	119,050
Total, Gross Unrealized Losses	287	750
Commercial mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	49,616
Less than Twelve Months, Gross Unrealized Losses	0	434
Twelve Months or More, Fair Value	2,961	116,786
Twelve Months or More, Gross Unrealized Losses	10	4,093
Total, Fair Value	2,961	166,402
Total, Gross Unrealized Losses	10	4,527
Residential mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Less than Twelve Months, Fair Value	0	34,249
Less than Twelve Months, Gross Unrealized Losses	0	240
Twelve Months or More, Fair Value	7,947	32,432
Twelve Months or More, Gross Unrealized Losses	70	827
Total, Fair Value	7,947	66,681
Total, Gross Unrealized Losses	$ 70	$ 1,067

Investments (Narrative) (Detail

Investments (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Investment [Line Items]
Securities sold under agreements to repurchase	$ 0		$ 0		$ 0
Commercial mortgage loans, Percentage	100.00%		100.00%		100.00%
Commercial mortgage and other loans, Acquired	$ 0	$ 0	$ 0	$ 0
Commercial mortgage and other loans, Sold	0	0	5,000,000	0
Fixed maturities
Investment [Line Items]
Gross unrealized losses	36,708,000		36,708,000		$ 142,065,000
Gross unrealized losses of twelve months or more concentrated in various sectors	31,818,000		31,818,000		60,301,000
NAIC high or highest quality rating | Fixed maturities
Investment [Line Items]
Gross unrealized losses	23,900,000		23,900,000		121,300,000
NAIC other than high or highest quality rating | Fixed maturities
Investment [Line Items]
Gross unrealized losses	$ 12,800,000		$ 12,800,000		20,800,000
California
Investment [Line Items]
Commercial mortgage loans, Percentage	21.00%		21.00%
Texas
Investment [Line Items]
Commercial mortgage loans, Percentage	14.00%		14.00%
New York
Investment [Line Items]
Commercial mortgage loans, Percentage	7.00%		7.00%
Europe
Investment [Line Items]
Commercial mortgage loans, Percentage	6.00%		6.00%
Australia
Investment [Line Items]
Commercial mortgage loans, Percentage	4.00%		4.00%
Mexico
Investment [Line Items]
Commercial mortgage loans, Percentage	2.00%		2.00%
Other Income | Equity securities
Investment [Line Items]
Unrealized Gain (Loss) on Investments	$ (500,000)	$ (700,000)	$ 200,000	$ (1,900,000)
Fixed maturities
Investment [Line Items]
Gross unrealized losses of twelve months or more concentrated in various sectors	$ 31,800,000		$ 31,800,000		$ 60,300,000

Investments (Amortized Cost and

Investments (Amortized Cost and Fair Value of Fixed Maturities by Contractual Maturities) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Amortized Cost
Due in one year or less	$ 162,744
Due after one year through five years	701,515
Due after five years through ten years	1,005,349
Due after ten years	3,164,130
Amortized Cost	5,623,693	$ 5,244,903
Fair Value
Due in one year or less	164,151
Due after one year through five years	707,518
Due after five years through ten years	1,046,082
Due after ten years	3,430,304
Fair Value	5,956,391	$ 5,199,595
Asset-backed securities
Amortized Cost
Debt Maturities, without single maturity date	139,728
Fair Value
Debt Maturities, without Single Maturity Date	140,922
Commercial mortgage-backed securities
Amortized Cost
Debt Maturities, without single maturity date	366,856
Fair Value
Debt Maturities, without Single Maturity Date	381,582
Residential mortgage-backed securities
Amortized Cost
Debt Maturities, without single maturity date	83,371
Fair Value
Debt Maturities, without Single Maturity Date	$ 85,832

Investments (Fixed Maturities_2

Investments (Fixed Maturities Securities Proceeds) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Debt Securities, Available-for-sale [Line Items]
Proceeds from maturities/prepayments			$ 179,330	$ 247,967
Fixed maturities | Available-for-sale
Debt Securities, Available-for-sale [Line Items]
Proceeds from sales	$ 28,231	$ 117,235	53,018	134,087
Proceeds from maturities/prepayments	75,554	85,808	128,429	140,118
Gross investment gains from sales and maturities	(1,384)	(30)	(435)	114
Gross investment losses from sales and maturities	(1,105)	(3,231)	(3,075)	(3,590)
OTTI recognized in earnings	$ 0	$ (57)	(3,163)	(651)
Non-cash related proceeds			$ 2,100	$ 26,200

Investments (Credit Losses Reco

Investments (Credit Losses Recognized In Earnings on Fixed Maturity Securities Held by the Company) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Investments [Abstract]
Balance, beginning of period	$ 3,610	$ 4,344	$ 1,291	$ 4,374
New credit loss impairments	0	0	3,022	0
Increases due to the passage of time on previously recorded credit losses	20	10	30	47
Reductions for securities which matured, paid down, prepaid or were sold during the period	(33)	(1,918)	(626)	(1,960)
Accretion of credit loss impairments previously recognized due to an increase in cash flows expected to be collected	(11)	(454)	(131)	(479)
Balance, end of period	$ 3,586	$ 1,982	$ 3,586	$ 1,982

Investments (Commercial Mortgag

Investments (Commercial Mortgage and Other Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 1,227,627	$ 1,211,215
Commercial mortgage loans, Percentage	100.00%	100.00%
Allowance for Credit Losses	$ (1,959)	$ (2,065)
Total commercial mortgage and other loans	1,225,668	1,209,150
Apartments and multi-family
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 355,719	$ 362,811
Commercial mortgage loans, Percentage	29.00%	29.90%
Hospitality
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 15,853	$ 16,083
Commercial mortgage loans, Percentage	1.30%	1.30%
Industrial
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 286,521	$ 263,999
Commercial mortgage loans, Percentage	23.20%	21.80%
Office
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 197,159	$ 187,450
Commercial mortgage loans, Percentage	16.10%	15.50%
Other
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 129,617	$ 131,961
Commercial mortgage loans, Percentage	10.60%	10.90%
Retail
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 189,040	$ 193,473
Commercial mortgage loans, Percentage	15.40%	16.00%
Commercial mortgage loans
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 1,173,909	$ 1,155,777
Commercial mortgage loans, Percentage	95.60%	95.40%
Agricultural property loans
Commercial Mortgage and Other Loans [Line Items]
Commercial mortgage and agricultural property loans by property type	$ 53,718	$ 55,438
Commercial mortgage loans, Percentage	4.40%	4.60%

Investments (Allowance for Cred

Investments (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	$ 2,065	$ 1,794
Addition to (release of) allowance for credit losses	(106)	271
Charge-offs, net of recoveries	0	0
Total ending balance	1,959	2,065
Commercial Mortgage Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	2,026	1,728
Addition to (release of) allowance for credit losses	(107)	298
Charge-offs, net of recoveries	0	0
Total ending balance	1,919	2,026
Agricultural Property Loans
Allowance for Loan and Lease Losses [Roll Forward]
Balance, beginning of year	39	66
Addition to (release of) allowance for credit losses	1	(27)
Charge-offs, net of recoveries	0	0
Total ending balance	$ 40	$ 39

Investments (Allowance for Cr_2

Investments (Allowance for Credit Losses and Recorded Investment in Commercial Mortgage and Other Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Allowance for credit losses:
Individually evaluated for impairment	$ 0	$ 0
Collectively evaluated for impairment	1,959	2,065
Total ending balance	1,959	2,065	$ 1,794
Recorded investment:
Individually evaluated for impairment	0	816
Collectively evaluated for impairment	1,227,627	1,210,399
Total ending balance	1,227,627	1,211,215
Receivables Acquired with Deteriorated Credit Quality
Recorded investment:
Financing Receivable Total	0	0
Commercial Mortgage Loans
Allowance for credit losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,919	2,026
Total ending balance	1,919	2,026	1,728
Recorded investment:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	1,173,909	1,155,777
Total ending balance	1,173,909	1,155,777
Agricultural Property Loans
Allowance for credit losses:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	40	39
Total ending balance	40	39	$ 66
Recorded investment:
Individually evaluated for impairment	0	816
Collectively evaluated for impairment	53,718	54,622
Total ending balance	$ 53,718	$ 55,438

Investments (Credit Quality Ind

Investments (Credit Quality Indicators) (Details) - Commercial Mortgage and Agricultural Loans - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	$ 1,227,627	$ 1,211,215
0%-59.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	728,685	709,358
60%-69.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	341,268	340,111
70%-79.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	157,447	133,517
80% and greater
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	227	28,229
≥ 1.2X
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	1,172,884	1,151,820
≥ 1.2X | 0%-59.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	714,155	696,507
≥ 1.2X | 60%-69.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	324,198	321,586
≥ 1.2X | 70%-79.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	134,531	105,727
≥ 1.2X | 80% and greater
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	0	28,000
1.0X to 1.2X
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	53,701	59,315
1.0X to 1.2X | 0%-59.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	13,715	12,771
1.0X to 1.2X | 60%-69.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	17,070	18,525
1.0X to 1.2X | 70%-79.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	22,916	27,790
1.0X to 1.2X | 80% and greater
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	0	229
Less than 1.0X
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	1,042	80
Less than 1.0X | 0%-59.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	815	80
Less than 1.0X | 60%-69.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	0	0
Less than 1.0X | 70%-79.99%
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	0	0
Less than 1.0X | 80% and greater
Financing Receivable, Credit Quality Indicator [Line Items]
Recording investment gross of allowance for credit losses	$ 227	$ 0

Investments (Analysis of Past D

Investments (Analysis of Past Due Commercial Mortgage, Agricultural and Other Loans) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Past Due [Line Items]
Current	$ 1,227,627	$ 1,211,215
Total Loans	1,227,627	1,211,215
Non-Accrual Status	0	0
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial mortgage loans
Financing Receivable, Past Due [Line Items]
Current	1,173,909	1,155,777
Total Loans	1,173,909	1,155,777
Non-Accrual Status	0	0
Commercial mortgage loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial mortgage loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Commercial mortgage loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Agricultural property loans
Financing Receivable, Past Due [Line Items]
Current	53,718	55,438
Total Loans	53,718	55,438
Non-Accrual Status	0	0
Agricultural property loans | 30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Agricultural property loans | 60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Agricultural property loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Past Due	0	0
Loans | 90 Days or More Past Due
Financing Receivable, Past Due [Line Items]
Accruing Interest	$ 0	$ 0

Investments (Other Invested Ass

Investments (Other Invested Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Other Invested Assets [Line Items]
Other invested assets	$ 394,951	$ 377,429
Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	333,162	286,490
Company’s investment in separate accounts
Other Invested Assets [Line Items]
Other invested assets	43,497	40,126
Derivative Instruments
Other Invested Assets [Line Items]
Other invested assets	18,292	50,813
Equity Method | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	263,938	216,586
Equity Method | Private equity | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	183,095	149,164
Equity Method | Hedge funds | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	61,090	57,171
Equity Method | Real estate-related | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	19,753	10,251
Fair Value | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	69,224	69,904
Fair Value | Private equity | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	57,156	60,118
Fair Value | Hedge funds | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	778	762
Fair Value | Real estate-related | Total LPs/LLCs
Other Invested Assets [Line Items]
Other invested assets	$ 11,290	$ 9,024

Investments (Net Investment Inc

Investments (Net Investment Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	$ 110,017	$ 86,177	$ 207,724	$ 168,671
Less: investment expenses	(4,455)	(4,528)	(8,912)	(9,107)
Net investment income	105,562	81,649	198,812	159,564
Equity securities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	221	221	442	442
Commercial mortgage and other loans
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	13,435	12,303	25,926	24,708
Policy loans
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	16,766	16,329	32,965	32,233
Short-term investments and cash equivalents
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	1,839	114	4,150	437
Other invested assets
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	18,060	1,743	27,971	1,858
Available-for-sale | Fixed maturities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	59,370	55,195	115,636	108,455
Trading | Fixed maturities
Schedule of Investment Income, Reported Amounts, by Category [Line Items]
Gross investment income	$ 326	$ 272	$ 634	$ 538

Investments (Realized Investmen

Investments (Realized Investment Gains Losses, Net) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Schedule Of Gain Loss On Investments [Line Items]
Realized investment gains (losses), net	$ (52,250)	$ (36,890)	$ (100,885)	$ (85,932)
Fixed maturities
Schedule Of Gain Loss On Investments [Line Items]
Realized investment gains (losses), net	(2,489)	(3,318)	(6,673)	(4,127)
Commercial mortgage and other loans
Schedule Of Gain Loss On Investments [Line Items]
Realized investment gains (losses), net	99	(125)	106	6
LPs/LLCs
Schedule Of Gain Loss On Investments [Line Items]
Realized investment gains (losses), net	0	2	12	849
Derivatives
Schedule Of Gain Loss On Investments [Line Items]
Realized investment gains (losses), net	(49,846)	(33,448)	(94,323)	(82,641)
Short-term investments and cash equivalents
Schedule Of Gain Loss On Investments [Line Items]
Realized investment gains (losses), net	$ (14)	$ (1)	$ (7)	$ (19)

Investments (Net Unrealized Gai

Investments (Net Unrealized Gains Losses on Investments by Asset Class) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Gain (Loss) on Securities [Line Items]
Net Unrealized Gains (Losses) on Investments	$ 370,547	$ (17,321)
Fixed maturities | Available-for-sale | OTTI
Gain (Loss) on Securities [Line Items]
Net Unrealized Gains (Losses) on Investments	535	(689)
Fixed maturities | Available-for-sale | All other
Gain (Loss) on Securities [Line Items]
Net Unrealized Gains (Losses) on Investments	332,163	(44,619)
Derivatives designated as cash flow hedges
Gain (Loss) on Securities [Line Items]
Net Unrealized Gains (Losses) on Investments	28,757	22,122
Affiliated notes
Gain (Loss) on Securities [Line Items]
Net Unrealized Gains (Losses) on Investments	4,025	810
Other investments
Gain (Loss) on Securities [Line Items]
Net Unrealized Gains (Losses) on Investments	$ 5,067	$ 5,055

Investments (Repurchase Agreeme

Investments (Repurchase Agreement and Securities Lending) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	$ 7,083	$ 11,063
Overnight & Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	7,083	11,063
Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	0	0
30 days or greater
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	0	0
US Treasury securities and obligations of U.S. government authorities and agencies
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	0	8,169
US Treasury securities and obligations of U.S. government authorities and agencies | Overnight & Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	0	8,169
US Treasury securities and obligations of U.S. government authorities and agencies | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	0	0
U.S. public corporate securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	4,636	628
U.S. public corporate securities | Overnight & Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	4,636	628
U.S. public corporate securities | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	0	0
Foreign public corporate securities
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	2,447	2,266
Foreign public corporate securities | Overnight & Continuous
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	2,447	2,266
Foreign public corporate securities | Up to 30 Days
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items]
Total cash collateral for loaned securities	$ 0	$ 0

Derivative Instruments (Gross N

Derivative Instruments (Gross Notional Amount and Fair Value of Derivatives Contracts) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Notional	$ 3,810,870	$ 3,070,256
Assets	182,340	77,890
Liabilities	(53,828)	(26,862)
Derivatives Designated as Hedge Accounting Instruments:
Derivative [Line Items]
Notional	751,074	719,476
Assets	43,962	38,333
Liabilities	(15,484)	(16,638)
Derivatives Designated as Hedge Accounting Instruments: | Foreign Currency Swaps
Derivative [Line Items]
Notional	751,074	719,476
Assets	43,962	38,333
Liabilities	(15,484)	(16,638)
Derivatives Not Qualifying as Hedge Accounting Instruments:
Derivative [Line Items]
Notional	3,059,796	2,350,780
Assets	138,378	39,557
Liabilities	(38,344)	(10,224)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Interest Rate Swaps
Derivative [Line Items]
Notional	596,925	246,925
Assets	31,580	15,665
Liabilities	(4,511)	(3,174)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Foreign Currency Forwards
Derivative [Line Items]
Notional	27,935	23,043
Assets	262	277
Liabilities	(100)	(20)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Credit Default Swaps
Derivative [Line Items]
Notional	0	756
Assets	0	0
Liabilities	0	(9)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Foreign Currency Swaps
Derivative [Line Items]
Notional	128,088	98,363
Assets	7,836	6,303
Liabilities	(1,244)	(2,109)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Equity Options
Derivative [Line Items]
Notional	2,306,848	1,981,693
Assets	98,700	17,312
Liabilities	$ (32,489)	$ (4,912)

Derivative Instruments (Offsett

Derivative Instruments (Offsetting Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Derivatives Assets
Gross Amounts of Recognized Financial Instruments	$ 182,336	$ 77,887
Gross Amounts Offset in the Consolidated Statement of Financial Position	(163,984)	(27,078)
Net Amounts Presented in the Consolidated Statement of Financial Position	18,352	50,809
Financial Instruments/Collateral	(18,352)	(7,307)
Net Amount	0	43,502
Securities Purchased under Agreements to Resell
Gross Amounts of Recognized Financial Instruments	16,000	143,000
Gross Amounts Offset in the Consolidated Statement of Financial Position	0	0
Net Amounts Presented in the Consolidated Statement of Financial Position	16,000	143,000
Financial Instruments/Collateral	(16,000)	(143,000)
Net Amount	0	0
Total Assets
Gross Amounts of Recognized Financial Instruments	198,336	220,887
Gross Amounts Offset in the Consolidated Statement of Financial Position	(163,984)	(27,078)
Net Amounts Presented in the Consolidated Statement of Financial Position	34,352	193,809
Financial Instruments/Collateral	(34,352)	(150,307)
Net Amount	0	43,502
Derivatives Liabilities
Gross Amounts of Recognized Financial Instruments	53,828	26,862
Gross Amounts Offset in the Consolidated Statement of Financial Position	(53,828)	(26,862)
Net Amounts Presented in the Consolidated Statement of Financial Position	0	0
Financial Instruments/Collateral	0	0
Net Amount	0	0
Securities Sold under Agreements to Repurchase
Gross Amounts of Recognized Financial Instruments	0	0
Gross Amounts Offset in the Consolidated Statement of Financial Position	0	0
Net Amounts Presented in the Consolidated Statement of Financial Position	0	0
Financial Instruments/Collateral	0	0
Net Amount	0	0
Total Liabilities
Gross Amounts of Recognized Financial Instruments	53,828	26,862
Gross Amounts Offset in the Consolidated Statement of Financial Position	(53,828)	(26,862)
Net Amounts Presented in the Consolidated Statement of Financial Position	0	0
Financial Instruments/Collateral	0	0
Net Amount	$ 0	$ 0

Derivative Instruments (Financi

Derivative Instruments (Financial Statement Classification and Impact of Derivatives Used in Qualifying and Non-qualifying Hedge Relationships) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	$ (49,846)	$ (33,448)	$ (94,323)	$ (82,641)
Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	2,211	1,611	4,280	3,149
Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	1,486	5,748	(29)	5,061
AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	13,316	31,519	6,662	8,657
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	(88)	83	(248)	(433)
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	2,211	1,611	4,280	3,149
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	1,482	5,710	(34)	5,046
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	13,316	31,519	6,662	8,657
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Currency/Interest Rate | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	(88)	83	(248)	(433)
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Currency/Interest Rate | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	2,211	1,611	4,280	3,149
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Currency/Interest Rate | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	1,482	5,710	(34)	5,046
Derivatives Designated as Hedge Accounting Instruments: | Cash flow hedges | Currency/Interest Rate | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	13,316	31,519	6,662	8,657
Derivatives Not Qualifying as Hedge Accounting Instruments: | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	(49,758)	(33,531)	(94,075)	(82,208)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	4	38	5	15
Derivatives Not Qualifying as Hedge Accounting Instruments: | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Interest Rate | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	7,682	(3,126)	15,297	(12,526)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Interest Rate | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Interest Rate | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Interest Rate | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	343	1,221	323	665
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency/Interest Rate | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	1,673	4,844	3,103	1,509
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency/Interest Rate | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency/Interest Rate | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	4	38	5	15
Derivatives Not Qualifying as Hedge Accounting Instruments: | Currency/Interest Rate | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Credit | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	(1)	(2)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Credit | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Credit | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Credit | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Equity | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	12,666	7,581	41,529	2,824
Derivatives Not Qualifying as Hedge Accounting Instruments: | Equity | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Equity | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Equity | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Embedded Derivatives | Realized Investment Gains (Losses)
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	(72,122)	(44,051)	(154,326)	(74,678)
Derivatives Not Qualifying as Hedge Accounting Instruments: | Embedded Derivatives | Net Investment Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Embedded Derivatives | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	0	0	0	0
Derivatives Not Qualifying as Hedge Accounting Instruments: | Embedded Derivatives | AOCI
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, gain (loss) on derivatives, net	$ 0	$ 0	$ 0	$ 0

Derivative Instruments (Current

Derivative Instruments (Current Period Cash Flow Hedges in AOCI (loss) before Taxes) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cumulative effect of adoption		$ (27)
Cash flow hedgers in AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Balance, beginning	$ 22,122
Amount Recorded in AOCI	10,661
Amounts reclassified into current period earnings	(3,999)
Balance, ending	28,757
Currency/Interest Rate | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Amount Recorded in AOCI	10,661
Amounts reclassified into current period earnings	$ (3,999)

Derivative Instruments (Narrati

Derivative Instruments (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 8
Credit Protection Purchased Notional Amounts	0	$ 1
Credit Derivative Protection Purchased Fair Value Asset (Liability)	0	0
Future Policy Benefits
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	(8,477)	(5,589)
Reinsurance Recoverables
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	8,486	5,600
Reinsurance Recoverables | PALAC and Prudential Insurance
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	8,398	5,585
Reinsurance Recoverables | Union Hamilton Reinsurance, Ltd.
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	88	15
Policyholders' account balances
Derivative [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative Asset (Liability), Net	$ (787)	$ (13)

Fair Value of Assets and Liab_3

Fair Value of Assets and Liabilities (Balances of Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	$ 5,956,391	$ 5,199,595
Fixed maturities, trading	49,417	41,627
Equity securities	17,774	36,922
Short-term Investments	94	0
Other invested assets	394,951	377,429
Reinsurance recoverables	38,946,785	34,682,127
Receivables from parent and affiliates	268,854	289,580
Separate account assets	132,731,982	119,077,916
TOTAL ASSETS	183,522,135	164,680,784
Future policy benefits	24,169,202	19,476,394
Payables to parent and affiliates	146,207	229,345
Total liabilities	180,375,338	161,947,553
Future policy benefits
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Embedded Derivative, Fair Value of Embedded Derivative, Net Liability	8,477,000	5,589,000
Embedded Derivative, Fair Value of Embedded Derivative Gross Asset	519,000	633,000
Embedded Derivative, Fair Value of Embedded Derivative Gross Liability	8,996,000	6,222,000
Fair Value, Measurements, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	5,956,391	5,199,595
Fixed maturities, trading	49,417	41,627
Equity securities	17,774	36,922
Short-term Investments	94	0
Cash equivalents	356,634	216,946
Other invested assets	18,356	50,812
Reinsurance recoverables	8,485,905	5,600,008
Receivables from parent and affiliates	127,862	134,642
Subtotal excluding separate account assets	15,012,433	11,280,552
Separate account assets	128,180,358	114,947,872
TOTAL ASSETS	143,192,791	126,228,424
Future policy benefits	8,476,541	5,588,840
Policyholders’ account balances	786,969	13,015
Payables to parent and affiliates	0	0
Total liabilities	9,263,510	5,601,855
Asset Netting	(163,984)	(27,078)
Liability Netting	(53,828)	(26,862)
Netting	110,200	200
Fair Value, Measurements, Recurring | Other invested assets
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Asset Netting	(163,984)	(27,078)
Fair Value, Measurements, Recurring | Payables to parent and affiliates
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Liability Netting	(53,828)	(26,862)
Fair Value, Measurements, Recurring | U.S. Treasury securities and obligations of U.S. government authorities and agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	82,602	77,470
Fair Value, Measurements, Recurring | Obligations of U.S. states and their political subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	654,019	622,758
Fair Value, Measurements, Recurring | Foreign government bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	228,314	201,947
Fair Value, Measurements, Recurring | U.S. corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	2,228,581	1,731,625
Fair Value, Measurements, Recurring | U.S. corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	927,236	883,338
Fair Value, Measurements, Recurring | Foreign corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	309,357	262,023
Fair Value, Measurements, Recurring | Foreign corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	917,946	827,379
Fair Value, Measurements, Recurring | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	140,922	157,596
Fair Value, Measurements, Recurring | Commercial mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	381,582	346,396
Fair Value, Measurements, Recurring | Residential mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	85,832	89,063
Fair Value, Measurements, Recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fixed maturities, trading	0	0
Equity securities	116	131
Short-term Investments	0	0
Cash equivalents	0	69,903
Other invested assets	0	0
Reinsurance recoverables	0	0
Receivables from parent and affiliates	0	0
Subtotal excluding separate account assets	116	70,034
Separate account assets	0	0
TOTAL ASSETS	116	70,034
Future policy benefits	0	0
Policyholders’ account balances	0	0
Payables to parent and affiliates	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | U.S. Treasury securities and obligations of U.S. government authorities and agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Obligations of U.S. states and their political subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Foreign government bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | U.S. corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | U.S. corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Foreign corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Foreign corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Commercial mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 1 | Residential mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	5,863,523	5,106,635
Fixed maturities, trading	48,812	41,627
Equity securities	553	20,794
Short-term Investments	0	0
Cash equivalents	356,634	147,043
Other invested assets	182,336	77,886
Reinsurance recoverables	0	0
Receivables from parent and affiliates	121,567	125,381
Subtotal excluding separate account assets	6,573,425	5,519,366
Separate account assets	128,180,358	114,947,872
TOTAL ASSETS	134,753,783	120,467,238
Future policy benefits	0	0
Policyholders’ account balances	0	0
Payables to parent and affiliates	53,828	26,862
Total liabilities	53,828	26,862
Fair Value, Measurements, Recurring | Level 2 | U.S. Treasury securities and obligations of U.S. government authorities and agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	48,210	47,654
Fair Value, Measurements, Recurring | Level 2 | Obligations of U.S. states and their political subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	654,019	622,758
Fair Value, Measurements, Recurring | Level 2 | Foreign government bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	228,149	201,947
Fair Value, Measurements, Recurring | Level 2 | U.S. corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	2,228,578	1,731,623
Fair Value, Measurements, Recurring | Level 2 | U.S. corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	885,288	838,497
Fair Value, Measurements, Recurring | Level 2 | Foreign corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	309,136	262,023
Fair Value, Measurements, Recurring | Level 2 | Foreign corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	906,104	815,634
Fair Value, Measurements, Recurring | Level 2 | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	138,297	151,040
Fair Value, Measurements, Recurring | Level 2 | Commercial mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	381,582	346,396
Fair Value, Measurements, Recurring | Level 2 | Residential mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	84,160	89,063
Fair Value, Measurements, Recurring | Level 3
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	92,868	92,960
Fixed maturities, trading	605	0
Equity securities	17,105	15,997
Short-term Investments	94	0
Cash equivalents	0	0
Other invested assets	4	4
Reinsurance recoverables	8,485,905	5,600,008
Receivables from parent and affiliates	6,295	9,261
Subtotal excluding separate account assets	8,602,876	5,718,230
Separate account assets	0	0
TOTAL ASSETS	8,602,876	5,718,230
Future policy benefits	8,476,541	5,588,840
Policyholders’ account balances	786,969	13,015
Payables to parent and affiliates	0	0
Total liabilities	9,263,510	5,601,855
Fair Value, Measurements, Recurring | Level 3 | U.S. Treasury securities and obligations of U.S. government authorities and agencies
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	34,392	29,816
Fair Value, Measurements, Recurring | Level 3 | Obligations of U.S. states and their political subdivisions
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 3 | Foreign government bonds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	165	0
Fair Value, Measurements, Recurring | Level 3 | U.S. corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	3	2
Fair Value, Measurements, Recurring | Level 3 | U.S. corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	41,948	44,841
Fair Value, Measurements, Recurring | Level 3 | Foreign corporate public securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	221	0
Fair Value, Measurements, Recurring | Level 3 | Foreign corporate private securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	11,842	11,745
Fair Value, Measurements, Recurring | Level 3 | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	2,625	6,556
Fair Value, Measurements, Recurring | Level 3 | Commercial mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	0	0
Fair Value, Measurements, Recurring | Level 3 | Residential mortgage-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fixed maturities, available-for-sale	1,672	0
Other invested assets
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value investment measured at NAV per share	69,000	70,000
Separate Account Assets
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Fair value investment measured at NAV per share	$ 4,552,000	$ 4,130,000

Fair Value of Assets and Liab_4

Fair Value of Assets and Liabilities (Quantitative Info for Level 3 Inputs) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Corporate securities	$ 12,454	$ 31,824
Future policy benefits	24,169,202	19,476,394
Fair Value, Measurements, Recurring
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Future policy benefits	8,476,541	5,588,840
Policyholders’ account balances	$ 786,969	13,015
Level 3 | Minimum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Policyholder Age	45 years
Level 3 | Minimum | Future policy benefits
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Mortality rate	0.00%
Level 3 | Maximum
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Policyholder Age	90 years
Level 3 | Fair Value, Measurements, Recurring
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Future policy benefits	$ 8,476,541	5,588,840
Policyholders’ account balances	$ 786,969	$ 13,015
Level 3 | Internal | Minimum | Discounted cash flow | Future policy benefits
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Lapse rate	1.00%	1.00%
Spread over LIBOR	0.16%	0.36%
Utilization rate	43.00%	50.00%
Withdrawal rate (greater than maximum range)	78.00%	78.00%
Mortality rate	0.00%	0.00%
Equity volatility curve	13.00%	18.00%
Level 3 | Internal | Minimum | Discounted cash flow | Policyholders' account balances
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Lapse rate	1.00%
Spread over LIBOR	0.16%
Mortality rate	0.00%
Equity volatility curve	10.00%
Level 3 | Internal | Minimum | Discounted cash flow | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Discount Rate	8.34%	7.00%
Level 3 | Internal | Minimum | Market comparables | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
EBITDA	5.7
Level 3 | Internal | Minimum | Liquidation | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Liquidation value	3.98%	40.71%
Level 3 | Internal | Maximum | Discounted cash flow | Future policy benefits
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Lapse rate	18.00%	13.00%
Spread over LIBOR	1.24%	1.60%
Utilization rate	97.00%	97.00%
Withdrawal rate (greater than maximum range)	100.00%	100.00%
Mortality rate	15.00%	15.00%
Equity volatility curve	23.00%	22.00%
Level 3 | Internal | Maximum | Discounted cash flow | Policyholders' account balances
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Lapse rate	6.00%
Spread over LIBOR	1.24%
Mortality rate	24.00%
Equity volatility curve	23.00%
Level 3 | Internal | Maximum | Discounted cash flow | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Discount Rate	15.17%	20.00%
Level 3 | Internal | Maximum | Market comparables | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
EBITDA	5.7
Level 3 | Internal | Maximum | Liquidation | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Liquidation value	3.98%	40.71%
Level 3 | Internal | Weighted Average | Discounted cash flow | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Discount Rate	12.03%	10.21%
Level 3 | Internal | Weighted Average | Market comparables | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
EBITDA	5.7
Level 3 | Internal | Weighted Average | Liquidation | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Liquidation value	3.98%	40.71%
Level 3 | Internal | Fair Value, Measurements, Recurring | Future policy benefits
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Future policy benefits	$ 8,476,541	$ 5,588,840
Level 3 | Internal | Fair Value, Measurements, Recurring | Policyholders' account balances
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Policyholders’ account balances	786,969
Level 3 | Internal | Fair Value, Measurements, Recurring | Corporate securities
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Corporate securities	23,086	31,503
Level 3 | Internal | Fair Value, Measurements, Recurring | Reinsurance recoverables
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]
Reinsurance recoverables	$ 8,485,905	$ 5,600,008

Fair Value of Assets and Liab_5

Fair Value of Assets and Liabilities (Changes in Level 3 Assets and Liabilities) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Equity securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	$ 15,991	$ 17,039	$ 15,997	$ 17,525
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Other	0	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	17,105	16,625	17,105	16,625
Total gains (losses) (realized/unrealized):
Included in earnings	1,114	(414)	1,108	(900)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	1,114	(414)	1,108	(900)
Equity securities | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Equity securities | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	1,114	(414)	1,108	(900)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	1,114	(414)	1,108	(900)
Equity securities | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Equity securities | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Other invested assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	4	10	4	0
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Other	0	0	0	0
Transfers into Level 3	0	0	0	9
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	4	5	4	5
Total gains (losses) (realized/unrealized):
Included in earnings	0	(5)	0	(4)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	(5)	0	(4)
Other invested assets | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	0	(5)	0	(4)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	(5)	0	(4)
Other invested assets | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Other invested assets | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Other invested assets | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Short-term Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	0	1,194	0	1,339
Purchases	463	1,870	463	5,270
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(369)	(2,731)	(369)	(6,244)
Other	0	0	0	(14)
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	94	333	94	333
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	(18)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	(1)	0	(19)
Short-term Investments | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	(18)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	(1)	0	(19)
Short-term Investments | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Short-term Investments | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Short-term Investments | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Cash equivalents
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period		0		0
Purchases		2,550		2,550
Sales		0		0
Issuances		0		0
Settlements		(1,986)		(1,986)
Other		0		0
Transfers into Level 3		0		0
Transfers out of Level 3		0		0
Fair Value, end of period		564		564
Total gains (losses) (realized/unrealized):
Included in earnings		0		0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings		0		0
Reinsurance recoverables
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	6,468,704	4,214,114	5,600,008	5,457,649
Purchases	244,013	221,324	479,391	440,781
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Other	0	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	8,485,905	3,943,881	8,485,905	3,943,881
Total gains (losses) (realized/unrealized):
Included in earnings	1,773,188	(491,557)	2,406,506	(1,954,549)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	1,833,209	(441,257)	2,504,883	(1,844,015)
Reinsurance recoverables | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	1,773,188	(491,557)	2,406,506	(1,954,549)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	1,833,209	(441,257)	2,504,883	(1,844,015)
Reinsurance recoverables | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Reinsurance recoverables | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Reinsurance recoverables | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Receivables from parents and affiliates
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	7,792	6,531	9,261	0
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	(1,579)	0	(3,159)	0
Other	0	0	0	0
Transfers into Level 3	0	0	0	6,551
Transfers out of Level 3	0	(6,531)	0	(6,531)
Fair Value, end of period	6,295	0	6,295	0
Total gains (losses) (realized/unrealized):
Included in earnings	82	0	193	(20)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Receivables from parents and affiliates | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Receivables from parents and affiliates | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	(20)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Receivables from parents and affiliates | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Receivables from parents and affiliates | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	82	0	193	0
Future policy benefits
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	(6,459,377)	(4,191,373)	(5,588,840)	(5,452,583)
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	(242,067)	(228,243)	(475,502)	(454,588)
Settlements	0	0	0	0
Other	0	0	0	0
Transfers Into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	(8,476,541)	(3,916,973)	(8,476,541)	(3,916,973)
Total gains (losses) (realized/unrealized):
Included in earnings	(1,775,097)	502,643	(2,412,199)	1,990,198
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	(1,836,960)	459,185	(2,510,576)	1,879,579
Future policy benefits | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	(1,775,097)	502,643	(2,412,199)	1,990,198
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	(1,836,960)	459,185	(2,510,576)	1,879,579
Future policy benefits | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Future policy benefits | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Future policy benefits | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Policyholders' account balances
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	(53,136)	(39,516)	(13,015)	(46,651)
Purchases	0	0	0	0
Sales	0	0	0	0
Issuances	(41,906)	0	(48,413)	0
Settlements	0	5,429	0	7,551
Other	0	0	0	0
Transfers Into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	(786,969)	(41,946)	(786,969)	(41,946)
Total gains (losses) (realized/unrealized):
Included in earnings	(691,927)	(7,859)	(725,541)	(2,846)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	(691,376)	(7,860)	(724,989)	(2,847)
Policyholders' account balances | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	(691,927)	(7,859)	(725,541)	(2,846)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	(691,376)	(7,860)	(724,989)	(2,847)
Policyholders' account balances | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Policyholders' account balances | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Policyholders' account balances | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Other liabilities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period		(15,955)		0
Purchases		8,880		17,705
Sales		0		0
Issuances		0		0
Settlements		0		0
Other		0		0
Transfers Into Level 3		0		0
Transfers out of Level 3		0		0
Fair Value, end of period		(17,610)		(17,610)
Total gains (losses) (realized/unrealized):
Included in earnings		(10,535)		(35,315)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings		(10,590)		(35,231)
Other liabilities | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings		(10,535)		(35,315)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings		(10,590)		(35,231)
Other liabilities | Other income
Total gains (losses) (realized/unrealized):
Included in earnings		0		0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings		0		0
Other liabilities | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings		0		0
Other liabilities | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings		0		0
Available-for-sale | Fixed maturities | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	(665)	(303)	(3,067)	(235)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	(49)	(3,163)	(75)
Available-for-sale | Fixed maturities | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Available-for-sale | Fixed maturities | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	678	(1,620)	842	(706)
Available-for-sale | Fixed maturities | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	264	86	363	163
Available-for-sale | Fixed maturities | US government
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	32,188	21,569	29,816	19,204
Purchases	2,204	2,842	4,576	5,207
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Other	0	0	0	0
Transfers into Level 3	0	0	0	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	34,392	24,411	34,392	24,411
Total gains (losses) (realized/unrealized):
Included in earnings	0	0	0	0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Available-for-sale | Fixed maturities | Foreign government bonds
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	164	166	0	0
Purchases	0		0	0
Sales	0	0	0	0
Issuances	0	0	0	0
Settlements	0	0	0	0
Other	0	0	0	174
Transfers into Level 3	0	0	159	0
Transfers out of Level 3	0	0	0	0
Fair Value, end of period	165	160	165	160
Total gains (losses) (realized/unrealized):
Included in earnings	1	(6)	6	(14)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	0	0	0
Available-for-sale | Fixed maturities | Corporate securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	54,960	72,615	56,588	75,421
Purchases	791	3,125	2,122	4,147
Sales	(25)	(201)	(53)	(201)
Issuances	0	0	0	0
Settlements	(2,584)	(15,501)	(9,681)	(20,071)
Other	(1)	(1)	0	14
Transfers into Level 3	639	4,028	8,216	4,028
Transfers out of Level 3	0	0	0	(209)
Fair Value, end of period	54,014	62,418	54,014	62,418
Total gains (losses) (realized/unrealized):
Included in earnings	234	(1,647)	(3,178)	(711)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	(49)	(3,163)	(75)
Available-for-sale | Fixed maturities | Structured securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	79,804	94,873	6,556	111,028
Purchases	0	10,648	0	10,838
Sales	(1)	(196)	(2)	(196)
Issuances	0	0	0	0
Settlements	(177)	(4,871)	(4,156)	(8,066)
Other	0	0	0	0
Transfers into Level 3	1,700	0	77,660	13,513
Transfers out of Level 3	(77,071)	(80,609)	(77,071)	(107,403)
Fair Value, end of period	4,297	19,661	4,297	19,661
Total gains (losses) (realized/unrealized):
Included in earnings	42	(184)	1,310	(53)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0	$ 0	0	$ 0
Trading | Fixed maturities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value, beginning of period	0		0
Purchases	0		0
Sales	0		0
Issuances	0		0
Settlements	0		0
Other	0		0
Transfers into Level 3	751		751
Transfers out of Level 3	0		0
Fair Value, end of period	605		605
Total gains (losses) (realized/unrealized):
Included in earnings	(146)		(146)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	(146)		(146)
Trading | Fixed maturities | Realized investment gains (losses), net
Total gains (losses) (realized/unrealized):
Included in earnings	0		0
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	0		0
Trading | Fixed maturities | Other income
Total gains (losses) (realized/unrealized):
Included in earnings	(146)		(146)
Unrealized gains (losses) for assets/liabilities still held:
Included in earnings	(146)		(146)
Trading | Fixed maturities | Included in other comprehensive income (loss)
Total gains (losses) (realized/unrealized):
Included in earnings	0		0
Trading | Fixed maturities | Net investment income
Total gains (losses) (realized/unrealized):
Included in earnings	$ 0		$ 0

Fair Value of Assets and Liab_6

Fair Value of Assets and Liabilities (Financial Instruments where Carrying Amounts and Fair Values May Differ) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Assets:
Policy loans	$ 1,263,413	$ 1,236,077
Cash and cash equivalents	415,497	416,840	$ 72,206	$ 212,569
Accrued investment income	93,167	88,278
Receivables from parent and affiliates	268,854	289,580
Liabilities:
Cash collateral for loaned securities	7,083	11,063
Fair Value
Assets:
Commercial mortgage and other loans	1,279,335	1,214,350
Policy loans	1,263,413	1,236,077
Cash and cash equivalents	58,863	199,894
Accrued investment income	93,167	88,278
Receivables from parent and affiliates	140,992	154,938
Other assets	29,764	28,950
Total assets	2,865,534	2,922,487
Liabilities:
Policyholders’ account balances - investment contracts	1,504,753	1,479,069
Cash collateral for loaned securities	7,083	11,063
Payables to parent and affiliates	146,207	229,345
Other liabilities	341,498	372,997
Total liabilities	1,999,541	2,092,474
Carrying Amount
Assets:
Commercial mortgage and other loans	1,225,668	1,209,150
Policy loans	1,263,413	1,236,077
Cash and cash equivalents	58,863	199,894
Accrued investment income	93,167	88,278
Receivables from parent and affiliates	140,992	154,938
Other assets	29,764	28,950
Total assets	2,811,867	2,917,287
Liabilities:
Policyholders’ account balances - investment contracts	1,505,223	1,486,929
Cash collateral for loaned securities	7,083	11,063
Payables to parent and affiliates	146,207	229,345
Other liabilities	341,498	372,997
Total liabilities	2,000,011	2,100,334
Level 1 | Fair Value
Assets:
Commercial mortgage and other loans	0	0
Policy loans	0	0
Cash and cash equivalents	42,863	56,894
Accrued investment income	0	0
Receivables from parent and affiliates	0	0
Other assets	0	0
Total assets	42,863	56,894
Liabilities:
Policyholders’ account balances - investment contracts	0	0
Cash collateral for loaned securities	0	0
Payables to parent and affiliates	0	0
Other liabilities	0	0
Total liabilities	0	0
Level 2 | Fair Value
Assets:
Commercial mortgage and other loans	0	0
Policy loans	0	0
Cash and cash equivalents	16,000	143,000
Accrued investment income	93,167	88,278
Receivables from parent and affiliates	140,992	154,938
Other assets	29,764	28,950
Total assets	279,923	415,166
Liabilities:
Policyholders’ account balances - investment contracts	1,225,951	1,206,747
Cash collateral for loaned securities	7,083	11,063
Payables to parent and affiliates	146,207	229,345
Other liabilities	341,498	372,997
Total liabilities	1,720,739	1,820,152
Level 3 | Fair Value
Assets:
Commercial mortgage and other loans	1,279,335	1,214,350
Policy loans	1,263,413	1,236,077
Cash and cash equivalents	0	0
Accrued investment income	0	0
Receivables from parent and affiliates	0	0
Other assets	0	0
Total assets	2,542,748	2,450,427
Liabilities:
Policyholders’ account balances - investment contracts	278,802	272,322
Cash collateral for loaned securities	0	0
Payables to parent and affiliates	0	0
Other liabilities	0	0
Total liabilities	$ 278,802	$ 272,322

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (34,585)	$ (13,012)	$ (51,465)	$ (15,711)
Effective income tax rate, percent			(60.03%)	(47.60%)
Federal Statutory income tax rate, percent			21.00%

Reinsurance (Reinsurance amount

Reinsurance (Reinsurance amounts included in the Statements of Financial Position) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Effects of Reinsurance [Line Items]
Reinsurance recoverables	$ 38,946,785	$ 34,682,127
Policy loans	1,263,413	1,236,077
Deferred policy acquisition costs	1,720,404	1,613,922
Other assets	370,240	365,219
Future policy benefits	24,169,202	19,476,394
Other liabilities	1,262,599	1,093,143
Impacts of Reinsurance
Effects of Reinsurance [Line Items]
Reinsurance recoverables	38,946,785	34,682,127
Policy loans	(134,453)	(130,502)
Deferred policy acquisition costs	(6,912,973)	(7,267,847)
Deferred sales inducements	(557,073)	(562,052)
Other assets	165,706	185,573
Policyholders’ account balances	4,959,484	5,004,112
Future policy benefits	3,914,630	3,376,048
Other liabilities	787,950	621,856
Unaffiliated activity
Effects of Reinsurance [Line Items]
Other assets	100	100
Other liabilities	$ 35,000	$ 27,000

Reinsurance (Reinsurance Recove

Reinsurance (Reinsurance Recoverable by Counterparty) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	$ 38,946,785	$ 34,682,127
PAR U
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	11,963,017	11,444,032
PALAC
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	11,483,993	8,828,190
PURC
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	4,371,948	4,127,455
PARCC
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	2,480,256	2,527,690
GUL Re
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	2,110,403	2,017,810
PAR Term
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	1,726,036	1,678,745
Prudential Insurance
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	1,624,532	1,226,917
Prudential of Taiwan
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	1,426,279	1,414,669
Term Re
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	1,417,733	1,259,141
DART
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	220,163	119,946
Unaffiliated
Effects of Reinsurance [Line Items]
Total reinsurance recoverables	$ 122,425	$ 37,532

Reinsurance (Reinsurance amou_2

Reinsurance (Reinsurance amounts included in the Statement of Operations and Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Premiums:
Direct	$ 476,986	$ 449,613	$ 939,257	$ 891,568
Assumed	52	58	106	118
Ceded	(464,621)	(434,768)	(912,952)	(868,868)
Net premiums	12,417	14,903	26,411	22,818
Policy charges and fee income:
Direct	1,106,725	717,264	1,959,920	1,563,511
Assumed	128,748	122,695	255,707	244,404
Ceded	(1,086,802)	(670,955)	(1,927,767)	(1,509,756)
Net policy charges and fee income	148,671	169,004	287,860	298,159
Net investment income:
Direct	106,949	82,957	201,507	162,106
Assumed	407	385	803	758
Ceded	(1,794)	(1,693)	(3,498)	(3,300)
Net investment income	105,562	81,649	198,812	159,564
Asset administration fees:
Direct	87,951	86,695	171,819	173,728
Assumed	0	0	0	0
Ceded	(83,990)	(83,151)	(164,201)	(166,711)
Net asset administration fees	3,961	3,544	7,618	7,017
Other income:
Direct	20,030	12,093	39,828	29,346
Assumed	(1,271)	(100)	(1,471)	(190)
Ceded	(39)	226	(62)	173
Amortization of reinsurance income	(3,722)	3,859	(2,340)	6,045
Net other income	14,998	16,078	35,955	35,374
Realized investment gains (losses), net:
Direct	(1,783,941)	503,522	(2,419,452)	1,978,284
Assumed	0	0	0	0
Ceded	1,731,691	(540,412)	2,318,567	(2,064,216)
Realized investment gains (losses), net	(52,250)	(36,890)	(100,885)	(85,932)
Policyholders’ benefits (including change in reserves):
Direct	1,150,985	644,501	1,797,296	1,296,173
Assumed	282,961	146,405	494,711	259,207
Ceded	(1,387,655)	(750,465)	(2,206,238)	(1,463,203)
Net policyholders’ benefits (including change in reserves)	46,291	40,441	85,769	92,177
Interest credited to policyholders’ account balances:
Direct	118,420	121,478	213,111	246,212
Assumed	34,512	34,849	65,169	71,366
Ceded	(102,222)	(113,772)	(183,373)	(234,225)
Net interest credited to policyholders’ account balances	50,710	42,555	94,907	83,353
Reinsurance expense allowances and general and administrative expenses, net of capitalization and amortization	(573,978)	(345,280)	(917,993)	(779,192)
Unaffiliated activity
Premiums:
Assumed	0	0	100	100
Ceded	(100)	0	(200)	0
Policy charges and fee income:
Ceded	(7,000)	(4,000)	(12,000)	(6,000)
Other income:
Assumed	(1,000)	(100)	(2,000)	(200)
Realized investment gains (losses), net:
Ceded	42,000	(10,000)	56,000	(48,000)
Policyholders’ benefits (including change in reserves):
Assumed	0	0	(200)	(100)
Ceded	$ (2,000)	$ (2,000)	$ (4,000)	$ (4,000)

Reinsurance (Life Insurance In

Reinsurance (Life Insurance In Force) (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jun. 30, 2018
Reinsurance Disclosures [Abstract]
Direct gross life insurance face amount in force	$ 966,542,451	$ 908,332,587
Assumed gross life insurance face amount in force	40,382,452	41,317,052
Reinsurance ceded	(925,430,727)	(876,823,569)
Net life insurance face amount in force	$ 81,494,176	$ 72,826,070

Reinsurance (Narrative) (Detail

Reinsurance (Narrative) (Details) - USD ($) $ in Thousands

Jan. 01, 2018

Jan. 01, 2017

Dec. 31, 2013

Jul. 01, 2012

Dec. 31, 2010

Dec. 31, 2009

Jan. 31, 2001

Jun. 30, 2019

Dec. 31, 2016

Dec. 31, 2016

Dec. 31, 2013

Dec. 31, 2017

Dec. 31, 2013

Dec. 31, 2018

Effects of Reinsurance [Line Items]

Reinsurance recoverables

$ 38,946,785

$ 34,682,127

PAR U

Effects of Reinsurance [Line Items]

Reinsurance recoverables

11,963,017

11,444,032

PURC

Effects of Reinsurance [Line Items]

Reinsurance recoverables

4,371,948

4,127,455

PARCC

Effects of Reinsurance [Line Items]

Reinsurance recoverables

2,480,256

2,527,690

GUL Re

Effects of Reinsurance [Line Items]

Reinsurance recoverables

2,110,403

2,017,810

PAR Term

Effects of Reinsurance [Line Items]

Reinsurance recoverables

1,726,036

1,678,745

Prudential of Taiwan

Effects of Reinsurance [Line Items]

Reinsurance recoverables

1,426,279

1,414,669

Term Re

Effects of Reinsurance [Line Items]

Reinsurance recoverables

1,417,733

1,259,141

Prudential Insurance

Effects of Reinsurance [Line Items]

Reinsurance recoverables

1,624,532

1,226,917

DART

Effects of Reinsurance [Line Items]

Reinsurance recoverables

220,163

$ 119,946

Union Hamilton Reinsurance, Ltd.

Effects of Reinsurance [Line Items]

Reinsurance recoverables

$ 3,100,000

Union Hamilton Reinsurance, Ltd. | Quote Share Reinsurance

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

50.00%

Affiliated Entity | PAR U

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

95.00%

70.00%

Affiliated Entity | PURC

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

95.00%

70.00%

Affiliated Entity | PARCC

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

90.00%

Affiliated Entity | GUL Re

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

95.00%

30.00%

Affiliated Entity | PAR Term

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

95.00%

Affiliated Entity | Prudential of Taiwan

Effects of Reinsurance [Line Items]

Related Party Transaction, Term

2 years

Affiliated Entity | Term Re

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

95.00%

Affiliated Entity | Prudential Insurance

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

100.00%

Affiliated Entity | DART

Effects of Reinsurance [Line Items]

Reinsurance Retention Policy, Reinsured Risk, Percentage

95.00%

Equity (Accumulated Other Compr

Equity (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018	Apr. 01, 2018	Jan. 01, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance				$ (28,296)
Income tax benefit (expense)		$ (38,512)	$ 18,363	(72,145)	$ 49,063
Cumulative effect of adoption							$ (27)
Ending Balance		250,165		250,165
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance				(17,448)	(234)
Change in OCI before reclassifications				7,007	(6,590)
Amounts reclassified from AOCI				0	0
Income tax benefit (expense)				2	1,384
Ending Balance		(10,439)	(5,490)	(10,439)	(5,490)
Net unrealized investment gains (losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance				(10,848)	165,580
Change in OCI before reclassifications				332,927	(223,420)
Amounts reclassified from AOCI				10,672	(3,634)
Income tax benefit (expense)				(72,147)	47,679
Ending Balance		260,604	15,165	260,604	15,165
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance				(28,296)	165,346
Change in OCI before reclassifications				339,934	(230,010)
Amounts reclassified from AOCI				10,672	(3,634)
Income tax benefit (expense)				(72,145)	49,063
Cumulative effect of adoption	[1]					$ 0
Ending Balance		250,165	9,675	250,165	9,675
ASU 2016-01 | Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of adoption			0		0
ASU 2016-01 | Net unrealized investment gains (losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of adoption			(1,539)		(1,539)
ASU 2016-01 | Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of adoption			(1,539)		(1,539)			$ 0	$ (1,539)
ASU 2018-02 | Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of adoption			(50)		(50)
ASU 2018-02 | Net unrealized investment gains (losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of adoption			30,499		30,499
ASU 2018-02 | Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cumulative effect of adoption			30,449		30,449			$ 50	$ 30,399
Cash flow hedges | Net unrealized investment gains (losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance				(18,000)	41,000
Ending Balance		$ 29,000	$ (9,000)	$ 29,000	$ (9,000)
[1]	Includes the impact from the adoption of ASUs 2017-08 and 2017-12. See Note 2.

Equity (Reclassification out of

Equity (Reclassification out of Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net unrealized investment gains (losses)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from AOCI			$ 10,672	$ (3,634)
Total reclassifications for the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from AOCI			10,672	(3,634)
Amounts reclassified from AOCI | Net unrealized investment gains (losses)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from AOCI	$ (6,882)	$ 4,124	(10,672)	3,634
Amounts reclassified from AOCI | Total reclassifications for the period
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from AOCI	(6,882)	4,124	(10,672)	3,634
Amounts reclassified from AOCI | Net unrealized investment gains (losses) on available-for-sale securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net unrealized investment gains (losses)	(2,489)	(3,318)	(6,673)	(4,127)
Amounts reclassified from AOCI | Currency/Interest rate | Cash flow hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net unrealized investment gains (losses)	$ (4,393)	$ 7,442	$ (3,999)	$ 7,761

Equity (OTTI Net Unrealized Inv

Equity (OTTI Net Unrealized Investment Gains (Losses) in AOCI) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ (28,296)
Ending Balance	250,165
Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(10,848)
Ending Balance	260,604
OTTI | Net Unrealized Gains (Losses) on Investments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(689)
Net investment gains (losses) on investments arising during the period	1,568
Reclassification adjustment for (gains) losses included in net income	(137)
Reclassification adjustment for OTTI (gains) losses excluded from net income	(207)
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	0
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	0
Ending Balance	535
OTTI | Deferred Policy Acquisition Costs and Other Costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(152)
Net investment gains (losses) on investments arising during the period	0
Reclassification adjustment for (gains) losses included in net income	0
Reclassification adjustment for OTTI (gains) losses excluded from net income	0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	105
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	0
Ending Balance	(47)
OTTI | Future Policy Benefits and Policyholders’ Account Balances
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	37
Net investment gains (losses) on investments arising during the period	0
Reclassification adjustment for (gains) losses included in net income	0
Reclassification adjustment for OTTI (gains) losses excluded from net income	0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	0
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	(127)
Ending Balance	(90)
OTTI | Deferred Income Tax (Liability) Benefit
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(192)
Net investment gains (losses) on investments arising during the period	(329)
Reclassification adjustment for (gains) losses included in net income	29
Reclassification adjustment for OTTI (gains) losses excluded from net income	43
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	(22)
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	27
Ending Balance	(444)
OTTI | Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(996)
Net investment gains (losses) on investments arising during the period	1,239
Reclassification adjustment for (gains) losses included in net income	(108)
Reclassification adjustment for OTTI (gains) losses excluded from net income	(164)
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	83
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	(100)
Ending Balance	$ (46)

Equity (All Other Net Unrealize

Equity (All Other Net Unrealized Investment Gains (Losses) in AOCI) (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ (28,296)
Ending Balance	250,165
Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(10,848)
Ending Balance	260,604
All Other | Net Unrealized Gains (Losses) on Investments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(16,632)
Net investment gains (losses) on investments arising during the period	375,628
Reclassification adjustment for (gains) losses included in net income	10,809
Reclassification adjustment for OTTI (gains) losses excluded from net income	207
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	0
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	0
Ending Balance	370,012
All Other | Deferred Policy Acquisition Costs and Other Costs
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(65,743)
Net investment gains (losses) on investments arising during the period	0
Reclassification adjustment for (gains) losses included in net income	0
Reclassification adjustment for OTTI (gains) losses excluded from net income	0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	176,301
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	0
Ending Balance	110,558
All Other | Future Policy Benefits and Policyholders’ Account Balances
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	68,005
Net investment gains (losses) on investments arising during the period	0
Reclassification adjustment for (gains) losses included in net income	0
Reclassification adjustment for OTTI (gains) losses excluded from net income	0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	0
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	(220,548)
Ending Balance	(152,543)
All Other | Deferred Income Tax (Liability) Benefit
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	4,518
Net investment gains (losses) on investments arising during the period	(78,873)
Reclassification adjustment for (gains) losses included in net income	(2,270)
Reclassification adjustment for OTTI (gains) losses excluded from net income	(43)
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	(37,019)
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	46,310
Ending Balance	(67,377)
All Other | Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(9,852)
Net investment gains (losses) on investments arising during the period	296,755
Reclassification adjustment for (gains) losses included in net income	8,539
Reclassification adjustment for OTTI (gains) losses excluded from net income	164
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	139,282
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders' account balances	(174,238)
Ending Balance	$ 260,650

Related Party Transactions (Nar

Related Party Transactions (Narrative) (Details)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2019USD ($)policy	Jun. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Related Party Transaction [Line Items]
Commissions and fees	$ 148,671,000	$ 169,004,000		$ 287,860,000	$ 298,159,000
Other invested assets	394,951,000			394,951,000		$ 377,429,000
Net investment income	105,562,000	81,649,000		198,812,000	159,564,000
Fee income from revenue sharing agreement	3,961,000	3,544,000		7,618,000	7,017,000
Debt Outstanding	0			0		0
Contributed Capital				0
Dividends				0		0
Prudential Insurance
Related Party Transaction [Line Items]
Contributed Capital			$ 6,000,000
Prudential Insurance
Related Party Transaction [Line Items]
Stock option program plan expense	600,000	500,000		700,000	700,000
Deferred compensation program expense	1,000,000	2,000,000		4,000,000	4,000,000
Pension plan expense	5,000,000	6,000,000		10,000,000	12,000,000
Welfare plan expense	6,000,000	7,000,000		$ 12,000,000	15,000,000
Defined contribution plan, employer matching contribution, percent (up to)				4.00%
Defined contribution plan, cost recognized	2,000,000	3,000,000		$ 5,000,000	5,000,000
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	4,142,000,000			$ 4,142,000,000		3,631,000,000
Fees related to Life Insurance, Corporate or Bank Owned, amount	11,000,000	11,000,000		24,000,000	23,000,000
Maximum amount of mortality risk	3,500,000			3,500,000
Prudential Financial
Related Party Transaction [Line Items]
Company's share of corporate expenses	20,000,000	19,000,000		$ 37,000,000	37,000,000
Number of Corporate Owned Life Insurance policies sold | policy				1
Affiliated Entity
Related Party Transaction [Line Items]
Accrued interest receivable related to long-tern notes receivable	1,000,000			$ 1,000,000		1,000,000
Revenues related to long-term notes receivable	1,000,000	1,000,000		2,000,000	2,000,000
Line of credit facility, maximum borrowing capacity	2,200,000,000			2,200,000,000
Interest expense related to loans payable	600,000	300,000		800,000	400,000
Affiliated Entity | PAD
Related Party Transaction [Line Items]
Commissions and fees	197,000,000	189,000,000		376,000,000	363,000,000
Affiliated Entity | ASTISI and PGIM Investments
Related Party Transaction [Line Items]
Fee income from revenue sharing agreement	84,000,000	83,000,000		165,000,000	167,000,000
Affiliated Entity | PGIM Investments
Related Party Transaction [Line Items]
Fee income from revenue sharing agreement	3,000,000	3,000,000		5,000,000	5,000,000
Affiliated Entity | PGIM
Related Party Transaction [Line Items]
Net investment income	3,000,000	4,000,000		7,000,000	7,000,000
Prudential Financial Joint Ventures
Related Party Transaction [Line Items]
Other invested assets	102,000,000			102,000,000		$ 88,000,000
Net investment income	$ 2,000,000	$ 2,000,000		$ 7,000,000	$ 2,000,000

Related Party Transactions (Aff

Related Party Transactions (Affiliated Notes Receivable) (Details) - Affiliated Entity - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Total notes receivable - affiliated	$ 127,862	$ 134,642
U.S. dollar floating rate notes
Related Party Transaction [Line Items]
Total notes receivable - affiliated	$ 0	6,502
U.S. dollar floating rate notes | Minimum
Related Party Transaction [Line Items]
Interest Rates	3.74%
U.S. dollar floating rate notes | Maximum
Related Party Transaction [Line Items]
Interest Rates	4.03%
U.S. Dollar fixed rate notes
Related Party Transaction [Line Items]
Total notes receivable - affiliated	$ 127,862	$ 128,140
U.S. Dollar fixed rate notes | Minimum
Related Party Transaction [Line Items]
Interest Rates	0.00%
U.S. Dollar fixed rate notes | Maximum
Related Party Transaction [Line Items]
Interest Rates	14.85%

Related Party Transactions (A_2

Related Party Transactions (Affiliated Asset Transfers) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Related Party Transaction [Line Items]
Realized investment gains (losses)	$ (52,250)	$ (36,890)	$ (100,885)	$ (85,932)
Affiliated Entity | DART January 2018 Purchase
Related Party Transaction [Line Items]
Fair Value	21,457		21,457
Book Value	21,457		21,457
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PALAC2 April 2018 Purchase
Related Party Transaction [Line Items]
Fair Value	64,313		64,313
Book Value	64,313		64,313
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | GULRe4 May 2018 Purchase
Related Party Transaction [Line Items]
Fair Value	87,486		87,486
Book Value	87,486		87,486
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | GULRe5 May 2018 Purchase
Related Party Transaction [Line Items]
Fair Value	37,921		37,921
Book Value	37,921		37,921
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			0
Affiliated Entity | PruRealtySecurities Nov 2018 Purchase
Related Party Transaction [Line Items]
Fair Value	3,259		3,259
Book Value	3,425		3,425
APIC, Net of Tax Increase/(Decrease)	0		0
Realized investment gains (losses)			(167)
Affiliated Entity | PrudentialInsuranceFeb2019 Sale
Related Party Transaction [Line Items]
Fair Value	4,995		4,995
Book Value	5,000		5,000
APIC, Net of Tax Increase/(Decrease)	(4)		(4)
Realized investment gains (losses)			0
Affiliated Entity | PALAC3 April 2019 Sale
Related Party Transaction [Line Items]
Fair Value	14,525		14,525
Book Value	13,466		13,466
APIC, Net of Tax Increase/(Decrease)	$ 0		0
Realized investment gains (losses)			$ 1,059

Commitments and Contingent Li_2

Commitments and Contingent Liabilities (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018	Jul. 31, 2017
Commitments and Contingent Liabilities [Line Items]
Litigation and regulatory matters loss contingency, range of possible loss, maximum (less than)	$ 100
Indonesia
Commitments and Contingent Liabilities [Line Items]
Joint Venture with CT Corp, Ownership Percentage			49.00%
Commitments | Commercial Mortgage Loans
Commitments and Contingent Liabilities [Line Items]
Total outstanding mortgage loan commitments	60	$ 14
Commitments | Investments
Commitments and Contingent Liabilities [Line Items]
Commitments to Purchase Investment (excluding Commercial Mortgage Loans)	$ 265	$ 257

Uncategorized Items - prucoform

Label	Element	Value
Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (1,114,000)	[1]
Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(1,114,000)	[1]
Accounting Standards Update 2016-01 [Member] | Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	6,397,000
Accounting Standards Update 2016-01 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	7,936,000
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0
Accounting Standard Update 2018-02 [Member] | Parent [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	0
Accounting Standard Update 2018-02 [Member] | Retained Earnings [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	(30,399,000)
Cumulative Effect of New Accounting Principle in Period of Adoption	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption	$ (50,000)
[1]	Includes the impact from the adoption of ASUs 2017-08 and 2017-12. See Note 2.