AOCI (Tables)

3 Months Ended

Mar. 31, 2016

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Changes in AOCI

Three Months Ended March 31, 2016	Unrecognized Net Pension and Postretirement Costs			Unrealized Net Gains (Losses) on Cash Flow Hedges			Unrealized Net Gains (Losses) on AFS Securities			FDIC's Share of Unrealized (Gains) Losses on AFS Securities			Other, net			Total
	(Dollars in millions)
AOCI balance, January 1, 2016	$	(723	)	$	(83	)	$	(34	)	$	(169	)	$	(19	)	$	(1,028	)
OCI before reclassifications, net of tax	—			(126		)	242			5			2			123
Amounts reclassified from AOCI:
Personnel expense	17			—			—			—			—			17
Interest income	—			—			(27		)	—			1			(26		)
Interest expense	—			17			—			—			—			17
FDIC loss share income, net	—			—			—			16			—			16
Securities (gains) losses, net	—			—			(45		)	—			—			(45		)
Total before income taxes	17			17			(72		)	16			1			(21		)
Less: Income taxes	6			6			(27		)	6			—			(9		)
Net of income taxes	11			11			(45		)	10			1			(12		)
Net change in AOCI	11			(115		)	197			15			3			111
AOCI balance, March 31, 2016	$	(712	)	$	(198	)	$	163		$	(154	)	$	(16	)	$	(917	)

Three Months Ended March 31, 2015	Unrecognized Net Pension and Postretirement Costs			Unrealized Net Gains (Losses) on Cash Flow Hedges			Unrealized Net Gains (Losses) on AFS Securities			FDIC's Share of Unrealized (Gains) Losses on AFS Securities			Other, net			Total
	(Dollars in millions)
AOCI balance, January 1, 2015	$	(626	)	$	(54	)	$	152		$	(207	)	$	(16	)	$	(751	)
OCI before reclassifications, net of tax	2			(67		)	67			2			(5		)	(1		)
Amounts reclassified from AOCI:
Personnel expense	12			—			—			—			—			12
Interest income	—			—			(16		)	—			1			(15		)
Interest expense	—			21			—			—			—			21
FDIC loss share income, net	—			—			—			13			—			13
Total before income taxes	12			21			(16		)	13			1			31
Less: Income taxes	5			8			(6		)	5			—			12
Net of income taxes	7			13			(10		)	8			1			19
Net change in AOCI	9			(54		)	57			10			(4		)	18
AOCI balance, March 31, 2015	$	(617	)	$	(108	)	$	209		$	(197	)	$	(20	)	$	(733	)