INVESTMENT OPERATIONS (Details 4) (USD $)				3 Months Ended		9 Months Ended							9 Months Ended	12 Months Ended									3 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Below investment grade	Sep. 30, 2014 Fixed maturities	Sep. 30, 2013 Fixed maturities	Sep. 30, 2014 Fixed maturities	Sep. 30, 2013 Fixed maturities	Dec. 31, 2013 Fixed maturities	Sep. 30, 2014 Residential mortgage-backed securities	Dec. 31, 2013 Residential mortgage-backed securities	Sep. 30, 2014 Commercial mortgage-backed securities	Dec. 31, 2013 Commercial mortgage-backed securities	Sep. 30, 2014 Other asset-backed securities	Dec. 31, 2013 Other asset-backed securities	Sep. 30, 2014 U.S. government-related securities	Dec. 31, 2013 U.S. government-related securities	Sep. 30, 2014 Other government-related securities	Dec. 31, 2013 Other government-related securities	Sep. 30, 2014 States, municipalities, and political subdivisions	Dec. 31, 2013 States, municipalities, and political subdivisions	Sep. 30, 2014 Corporate bonds	Dec. 31, 2013 Corporate bonds	Sep. 30, 2014 Equity securities	Sep. 30, 2013 Equity securities	Sep. 30, 2014 Equity securities	Sep. 30, 2013 Equity securities	Dec. 31, 2013 Equity securities
Fair Value
Less Than 12 Months	$ 3,065,834,000	$ 9,868,841,000							$ 148,721,000	$ 332,812,000	$ 123,244,000	$ 429,228,000	$ 109,657,000	$ 175,846,000	$ 374,160,000	$ 891,698,000		$ 10,161,000	$ 880,000	$ 172,157,000	$ 2,218,375,000	$ 7,480,163,000	$ 90,797,000		$ 90,797,000		$ 376,776,000
12 Months or More	2,277,618,000	1,020,842,000							88,407,000	209,818,000	124,578,000	13,840,000	551,045,000	497,512,000	348,899,000	6,038,000			40,936,000	335,000	995,498,000	271,535,000	128,255,000		128,255,000		21,764,000
Total	5,343,452,000	10,889,683,000							237,128,000	542,630,000	247,822,000	443,068,000	660,702,000	673,358,000	723,059,000	897,736,000		10,161,000	41,816,000	172,492,000	3,213,873,000	7,751,698,000	219,052,000		219,052,000		398,540,000
Unrealized Loss
Less Than 12 Months	(78,068,000)	(489,624,000)							(7,759,000)	(14,050,000)	(1,534,000)	(18,467,000)	(5,537,000)	(14,555,000)	(7,835,000)	(53,508,000)		(1,000)	(6,000)	(8,113,000)	(54,092,000)	(353,069,000)	(1,305,000)		(1,305,000)		(27,861,000)
12 Months or More	(134,695,000)	(114,680,000)							(6,357,000)	(10,486,000)	(4,329,000)	(1,238,000)	(28,736,000)	(54,993,000)	(14,470,000)	(570,000)			(2,343,000)	(178,000)	(63,270,000)	(38,744,000)	(15,190,000)		(15,190,000)		(8,471,000)
Total	(212,763,000)	(604,304,000)							(14,116,000)	(24,536,000)	(5,863,000)	(19,705,000)	(34,273,000)	(69,548,000)	(22,305,000)	(54,078,000)		(1,000)	(2,349,000)	(8,291,000)	(117,362,000)	(391,813,000)	(16,495,000)		(16,495,000)		(36,332,000)
Percentage of underlying collateral including student-loan backed auction rate securities guaranteed by the Federal Family Education Loan Program ("FFELP"), minimum													97.00%	97.00%
Available-for-sale securities, fair value	34,913,506,000	32,668,220,000	1,700,000,000	34,073,156,000		34,073,156,000		32,006,429,000	1,442,839,000	1,445,068,000	1,175,523,000	970,656,000	848,339,000	871,983,000	1,584,210,000	1,507,890,000	22,020,000	51,427,000	1,612,707,000	1,410,829,000	27,387,518,000	25,748,576,000	737,374,000		737,374,000		581,209,000
Available-for-sale securities, amortized cost	32,197,523,000	31,541,863,000	1,600,000,000	31,371,863,000		31,371,863,000		30,849,808,000	1,405,611,000	1,435,349,000	1,137,642,000	963,461,000	869,136,000	926,396,000	1,563,337,000	1,529,818,000	19,004,000	49,171,000	1,371,113,000	1,315,457,000	25,006,020,000	24,630,156,000	722,684,000		722,684,000		611,473,000
Securities in trading portfolio			322,600,000	2,800,000,000		2,800,000,000		2,800,000,000															24,100,000		24,100,000		21,200,000
Securities not publicly traded			785,500,000
Change in unrealized gains (losses), net of income tax				$ (143,278,000)	$ (155,839,000)	$ 1,004,483,000	$ (1,175,521,000)																$ (3,784,000)	$ (12,791,000)	$ 29,220,000	$ (17,393,000)