CONSOLIDATED STATEMENTS OF OTHER COMPREHENSIVE INCOME (UNAUDITED) Parenthetical (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net unrealized derivative instrument gains (losses) arising during the periods tax	$ 10	$ 1	$ 80	$ (70)
Reclassification adjustment for net derivative losses included in net income tax	2	11	9	45
Net unrealized securities gains (losses) arising during the periods tax	(36)	19	73	(107)
Other-than-temporary impairment not recognized in earnings on securities tax	0	0	(12)	(21)
Reclassification of net securities gains to net income tax	0	(7)	(7)	(41)
Actuarial loss tax	(35)	0	(35)	0
Net prior service credit tax	3	0	3	0
Amortization of actuarial loss tax	1	1	2	4
Tax on divestitures	$ 13	$ 0	$ 13	$ 0