INVESTMENTS (Details 5) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	$ 1,253	$ 382
Gross unrecognized losses less than 12 months	36	7
Fair value 12 months or longer	858	2,311
Gross unrecognized losses 12 months or longer	339	396
Fair value, total	2,111	2,693
Gross unrecognized losses, total	375	403
Unrealized loss, other than temporary impairment, not credit loss, recorded in AOCI	675	1,532
Mortgage-backed securities
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months		88
Gross unrecognized losses less than 12 months		7
Fair value 12 months or longer	358	1,522
Gross unrecognized losses 12 months or longer	285	351
Fair value, total	358	1,610
Gross unrecognized losses, total	285	358
State and municipal securities
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	235
Gross unrecognized losses less than 12 months	20
Fair value 12 months or longer	302	383
Gross unrecognized losses 12 months or longer	50	37
Fair value, total	537	383
Gross unrecognized losses, total	70	37
Foreign government
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	920	294
Gross unrecognized losses less than 12 months	10
Fair value, total	920	294
Gross unrecognized losses, total	10
Asset-backed securities
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	98
Gross unrecognized losses less than 12 months	6
Fair value 12 months or longer	198	406
Gross unrecognized losses 12 months or longer	4	8
Fair value, total	296	406
Gross unrecognized losses, total	$ 10	$ 8