Consolidated Statements of Comprehensive Income Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017		Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net Income (Loss) Attributable to Parent	$ 722	$ 528	[1],[2]	$ 1,365	$ 995	[3],[4]
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(123)	55		(548)	57
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(35)	31		(159)	(11)
Other Comprehensive Income (Loss), Brokered Time Deposits, Net of Tax	(1)	0		0	0
Other Comprehensive Income (Loss), Long Term Debt, Adjustment, Net of Tax	1	1		3	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	1	3		(1)	(2)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	(157)	90		(705)	44
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 565	$ 618		$ 660	$ 1,039

[1] During the fourth quarter of 2017, the Company sold PAC, the results of which were previously reported within the Wholesale business segment. For all periods prior to January 1, 2018, PAC's financial results, including the gain on sale, have been transferred to Corporate Other for enhanced comparability of the Wholesale business segment excluding PAC.

[2] During the second quarter of 2018, certain of the Company's business banking clients were transferred from the Wholesale business segment to the Consumer business segment. For all periods prior to the second quarter of 2018, the corresponding financial results have been transferred to the Consumer business segment for comparability purposes.

[3] During the fourth quarter of 2017, the Company sold PAC, the results of which were previously reported within the Wholesale business segment. For all periods prior to January 1, 2018, PAC's financial results, including the gain on sale, have been transferred to Corporate Other for enhanced comparability of the Wholesale business segment excluding PAC.

[4] During the second quarter of 2018, certain of the Company's business banking clients were transferred from the Wholesale business segment to the Consumer business segment. For all periods prior to the second quarter of 2018, the corresponding financial results have been transferred to the Consumer business segment for comparability purposes.