INVESTMENT OPERATIONS (Details 4) $ in Thousands	1 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended	12 Months Ended
	Jan. 31, 2015 USD ($)	Jun. 30, 2015 USD ($) position	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) position	Jun. 30, 2014 USD ($)	Dec. 31, 2014 USD ($)	Mar. 31, 2015 USD ($)
Fair Value
Less Than 12 Months							$ 30,338,630
Total							30,338,630
Unrealized Loss
Less Than 12 Months							(2,200,988)
Total							$ (2,200,988)
Total positions that were in an unrealized loss position | position		2,435		2,435
Available-for-sale securities, fair value		$ 33,890,884		$ 33,890,884
Available-for-sale securities, amortized cost		36,030,697		36,030,697
Below investment grade
Unrealized Loss
Available-for-sale securities, fair value		1,600,000		1,600,000
Available-for-sale securities, amortized cost		1,600,000		1,600,000
Securities in trading portfolio		308,800		308,800
Securities Not publicly traded		403,300		403,300
Fixed maturities
Unrealized Loss
Available-for-sale securities, fair value		33,015,877		33,015,877
Available-for-sale securities, amortized cost		35,144,095		35,144,095
Securities in trading portfolio		2,700,000		2,700,000
Change in unrealized gains (losses), net of income tax		(1,040,143)		(1,383,342)
Residential mortgage-backed securities
Fair Value
Less Than 12 Months		1,043,439		1,043,439
Total		1,043,439		1,043,439
Unrealized Loss
Less Than 12 Months		(23,585)		(23,585)
Total		(23,585)		(23,585)
Available-for-sale securities, fair value		1,576,826		1,576,826
Available-for-sale securities, amortized cost		1,594,167		1,594,167
Commercial mortgage-backed securities
Fair Value
Less Than 12 Months		1,125,342		1,125,342
Total		1,125,342		1,125,342
Unrealized Loss
Less Than 12 Months		(34,102)		(34,102)
Total		(34,102)		(34,102)
Available-for-sale securities, fair value		1,203,156		1,203,156
Available-for-sale securities, amortized cost		1,236,987		1,236,987
Other asset-backed securities
Fair Value
Less Than 12 Months		723,695		723,695
Total		723,695		723,695
Unrealized Loss
Less Than 12 Months		(22,940)		(22,940)
Total		(22,940)		(22,940)
Available-for-sale securities, fair value		799,471		799,471
Available-for-sale securities, amortized cost		820,349		820,349
U.S. government-related securities.
Fair Value
Less Than 12 Months		1,569,203		1,569,203
Total		1,569,203		1,569,203
Unrealized Loss
Less Than 12 Months		(42,983)		(42,983)
Total		(42,983)		(42,983)
Available-for-sale securities, fair value		1,601,530		1,601,530
Available-for-sale securities, amortized cost		1,644,086		1,644,086
Other government-related securities
Fair Value
Less Than 12 Months		18,782		18,782
Total		18,782		18,782
Unrealized Loss
Less Than 12 Months		(796)		(796)
Total		(796)		(796)
Available-for-sale securities, fair value		18,782		18,782
Available-for-sale securities, amortized cost		19,578		19,578
States, municipals, and political subdivisions
Fair Value
Less Than 12 Months		1,583,913		1,583,913
Total		1,583,913		1,583,913
Unrealized Loss
Less Than 12 Months		(135,050)		(135,050)
Total		(135,050)		(135,050)
Available-for-sale securities, fair value		1,585,068		1,585,068
Available-for-sale securities, amortized cost		1,720,059		1,720,059
Corporate securities
Fair Value
Less Than 12 Months		23,716,026		23,716,026
Total		23,716,026		23,716,026
Unrealized Loss
Less Than 12 Months		(1,926,339)		(1,926,339)
Total		(1,926,339)		(1,926,339)
Available-for-sale securities, fair value		26,169,377		26,169,377
Available-for-sale securities, amortized cost		28,044,507		28,044,507
Preferred stock
Fair Value
Less Than 12 Months		61,667		61,667
Total		61,667		61,667
Unrealized Loss
Less Than 12 Months		(2,695)		(2,695)
Total		(2,695)		(2,695)
Available-for-sale securities, fair value		61,667		61,667
Available-for-sale securities, amortized cost		64,362		64,362
Equity securities
Fair Value
Less Than 12 Months		496,563		496,563
Total		496,563		496,563
Unrealized Loss
Less Than 12 Months		(12,498)		(12,498)
Total		(12,498)		(12,498)
Available-for-sale securities, fair value		714,152		714,152
Available-for-sale securities, amortized cost		725,747		725,747
Securities in trading portfolio		8,300		8,300
Change in unrealized gains (losses), net of income tax		$ (9,048)		$ (7,537)
Predecessor
Fair Value
Less Than 12 Months						$ 2,235,384
12 Months or More						1,905,163
Total						4,140,547
Unrealized Loss
Less Than 12 Months						(96,929)
12 Months or More						(116,589)
Total						(213,518)
Available-for-sale securities, fair value						34,894,415
Available-for-sale securities, amortized cost						31,832,181
Predecessor | Fixed maturities
Unrealized Loss
Available-for-sale securities, fair value						33,957,169
Available-for-sale securities, amortized cost						30,919,422
Securities in trading portfolio						2,800,000
Change in unrealized gains (losses), net of income tax	$ 670,229		$ 519,745		$ 1,148,357
Predecessor | Residential mortgage-backed securities
Fair Value
Less Than 12 Months						166,271
12 Months or More						67,280
Total						233,551
Unrealized Loss
Less Than 12 Months						(9,562)
12 Months or More						(2,716)
Total						(12,278)
Available-for-sale securities, fair value						1,418,258
Available-for-sale securities, amortized cost						1,374,206
Predecessor | Commercial mortgage-backed securities
Fair Value
Less Than 12 Months						49,909
12 Months or More						102,529
Total						152,438
Unrealized Loss
Less Than 12 Months						(334)
12 Months or More						(2,030)
Total						(2,364)
Available-for-sale securities, fair value						1,177,252
Available-for-sale securities, amortized cost						1,119,979
Predecessor | Other asset-backed securities
Fair Value
Less Than 12 Months						108,666
12 Months or More						537,486
Total						646,152
Unrealized Loss
Less Than 12 Months						(6,473)
12 Months or More						(29,477)
Total						$ (35,950)
Percentage of underlying collateral of student-loan backed auction rate securities guaranteed by the Federal Family Education Loan Program ("FFELP"), minimum						97.00%
Available-for-sale securities, fair value						$ 839,376
Available-for-sale securities, amortized cost						857,441
Predecessor | U.S. government-related securities.
Fair Value
Less Than 12 Months						231,917
12 Months or More						280,803
Total						512,720
Unrealized Loss
Less Than 12 Months						(3,868)
12 Months or More						(5,414)
Total						(9,282)
Available-for-sale securities, fair value						1,428,895
Available-for-sale securities, amortized cost						1,394,028
Predecessor | Other government-related securities
Unrealized Loss
Available-for-sale securities, fair value						20,172
Available-for-sale securities, amortized cost						16,939
Predecessor | States, municipals, and political subdivisions
Fair Value
Less Than 12 Months						1,904
12 Months or More						10,482
Total						12,386
Unrealized Loss
Less Than 12 Months						(134)
12 Months or More						(297)
Total						(431)
Available-for-sale securities, fair value						1,687,689
Available-for-sale securities, amortized cost						1,391,526
Predecessor | Corporate securities
Fair Value
Less Than 12 Months						1,659,287
12 Months or More						776,864
Total						2,436,151
Unrealized Loss
Less Than 12 Months						(76,341)
12 Months or More						(62,690)
Total						(139,031)
Available-for-sale securities, fair value						27,385,527
Available-for-sale securities, amortized cost						24,765,303
Predecessor | Equity securities
Fair Value
Less Than 12 Months						17,430
12 Months or More						129,719
Total						147,149
Unrealized Loss
Less Than 12 Months						(217)
12 Months or More						(13,965)
Total						(14,182)
Available-for-sale securities, fair value						781,746
Available-for-sale securities, amortized cost						757,259
Securities in trading portfolio						$ 21,500
Change in unrealized gains (losses), net of income tax	$ 10,226		$ 14,591		$ 33,004