INVESTMENTS (Details 5) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	$ 26	$ 1,253
Gross unrecognized losses less than 12 months		36
Fair value 12 months or longer	8,593	858
Gross unrecognized losses 12 months or longer	509	339
Fair value, total	8,619	2,111
Gross unrecognized losses, total	509	375
Unrealized loss, other than temporary impairment, not credit loss, recorded in AOCI	(992)	(675)
Mortgage-backed securities
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	4
Fair value 12 months or longer	3,364	358
Gross unrecognized losses 12 months or longer	281	285
Fair value, total	3,368	358
Gross unrecognized losses, total	281	285
State and municipal securities
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	10	235
Gross unrecognized losses less than 12 months		20
Fair value 12 months or longer	5,054	302
Gross unrecognized losses 12 months or longer	218	50
Fair value, total	5,064	537
Gross unrecognized losses, total	218	70
Foreign government
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months		920
Gross unrecognized losses less than 12 months		10
Fair value, total		920
Gross unrecognized losses, total		10
Asset-backed securities
Held-to-maturity Securities, Continuous Unrealized Loss Position
Fair value less than 12 months	12	98
Gross unrecognized losses less than 12 months		6
Fair value 12 months or longer	175	198
Gross unrecognized losses 12 months or longer	10	4
Fair value, total	187	296
Gross unrecognized losses, total	$ 10	$ 10