AOCI (Tables)

9 Months Ended

Sep. 30, 2016

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

Schedule of Changes in AOCI

Nine Months Ended September 30, 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	(8		)	(154		)	280			148			3			269
Amounts reclassified from AOCI:
Personnel expense	51			—			—			—			—			51
Interest income	—			—			(45		)	—			2			(43		)
Interest expense	—			18			—			—			—			18
FDIC loss share income, net	—			—			—			33			—			33
Securities (gains) losses, net	—			—			(45		)	—			—			(45		)
Total before income taxes	51			18			(90		)	33			2			14
Less: Income taxes	19			7			(34		)	12			1			5
Net of income taxes	32			11			(56		)	21			1			9
Net change in AOCI	24			(143		)	224			169			4			278
AOCI balance, September 30, 2016	$	(699	)	$	(226	)	$	190		$	—		$	(15	)	$	(750	)

Nine Months Ended September 30, 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	(20		)	(112		)	(18		)	12			(7		)	(145		)
Amounts reclassified from AOCI:
Personnel expense	38			—			—			—			—			38
Interest income	—			—			28			—			3			31
Interest expense	—			63			—			—			—			63
FDIC loss share income, net	—			—			—			26			—			26
Securities (gains) losses, net	—			—			3			—			—			3
Total before income taxes	38			63			31			26			3			161
Less: Income taxes	14			24			12			10			1			61
Net of income taxes	24			39			19			16			2			100
Net change in AOCI	4			(73		)	1			28			(5		)	(45		)
AOCI balance, September 30, 2015	$	(622	)	$	(127	)	$	153		$	(179	)	$	(21	)	$	(796	)

Three Months Ended September 30, 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, July 1, 2016	$	(701	)	$	(247	)	$	263		$	(137	)	$	(15	)	$	(837	)
OCI before reclassifications, net of tax	(9		)	23			(72		)	137			—			79
Amounts reclassified from AOCI:
Personnel expense	18			—			—			—			—			18
Interest income	—			—			(2		)	—			1			(1		)
Interest expense	—			(3		)	—			—			—			(3		)
FDIC loss share income, net	—			—			—			—			—			—
Securities (gains) losses, net	—			—			—			—			—			—
Total before income taxes	18			(3		)	(2		)	—			1			14
Less: Income taxes	7			(1		)	(1		)	—			1			6
Net of income taxes	11			(2		)	(1		)	—			—			8
Net change in AOCI	2			21			(73		)	137			—			87
AOCI balance, September 30, 2016	$	(699	)	$	(226	)	$	190		$	—		$	(15	)	$	(750	)

Three Months Ended September 30, 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, July 1, 2015	$	(608	)	$	(35	)	$	102	$	(188	)	$	(19	)	$	(748	)
OCI before reclassifications, net of tax	(23		)	(105		)	36		5			(3		)	(90		)
Amounts reclassified from AOCI:
Personnel expense	14			—			—		—			—			14
Interest income	—			—			22		—			2			24
Interest expense	—			21			—		—			—			21
FDIC loss share income, net	—			—			—		7			—			7
Securities (gains) losses, net	—			—			2		—			—			2
Total before income taxes	14			21			24		7			2			68
Less: Income taxes	5			8			9		3			1			26
Net of income taxes	9			13			15		4			1			42
Net change in AOCI	(14		)	(92		)	51		9			(2		)	(48		)
AOCI balance, September 30, 2015	$	(622	)	$	(127	)	$	153	$	(179	)	$	(21	)	$	(796	)