CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (21)	$ 87	$ 133	$ 251
Net change in unrealized gains (losses), net of tax:
Investment securities	208	(213)	486	(241)
Derivatives designated as cash flow hedges	(11)	31	(56)	12
Pension and post-retirement benefit plans	0	0	0	1
Total other comprehensive income (loss)	197	(182)	430	(228)
Comprehensive income (loss)	$ 176	$ (95)	$ 563	$ 23

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=51831270

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-Publisher FASB
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