CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) Consolidated Statement of Income 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
Income Statement [Abstract]
Net other-than-temporary impairment losses	$ 4	[1]	$ 0	[1]	$ 11	[1]	$ 0	[1]

[1] During the three and nine months ended September 30, 2014, other-than-temporary impairment ("OTTI") losses on securities held-to-maturity totaling $4 million and $11 million, respectively, were recognized in other revenues. There were no OTTI losses in the non-credit component of such impaired securities reflected in accumulated other comprehensive income ("AOCI"), net of tax during the periods. During the three and nine months ended September 30, 2013, there were no OTTI losses on securities recognized in other revenues and no OTTI losses in the non-credit component of securities recognized in AOCI, net of tax.