CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 121	$ 269	$ 230	$ 31
Net change in unrealized gains (losses), net of tax:
Investment securities	220	(76)	399	(271)
Fair value option liabilities attributable to our own credit spread	7	129	(104)	141
Derivatives designated as cash flow hedges	5		19
Derivatives designated as cash flow hedges		10		12
Pension and post-retirement benefit plans	0	(1)	(3)	0
Total other comprehensive income (loss)	232	62	311	(118)
Comprehensive income (loss)	$ 353	$ 331	$ 541	$ (87)

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.

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