The following table presents a reconciliation of the changes in the components of accumulated other comprehensive loss and details the components of other comprehensive income (loss) for the six months ended June 30, 2016 and 2015, including the amount of income tax expense (benefit) allocated to each component of other comprehensive income (loss).



	Six Months Ended June 30,
(in millions)	2016			2015
Accumulated net unrealized gains on investment securities:
Balance at beginning of period, net of tax	$	9		$	37

Net unrealized holding gains (losses) arising during the period	191			(17		)
Less: Provision (benefit) for income taxes	70			(6		)
Net unrealized holding gains (losses) arising during the period, net of tax	121			(11		)
Less:
Net realized losses included in net securities losses	—			(2		)
Less: Benefit for income taxes	—			(1		)
Reclassification adjustment for net securities losses included in net income, net of tax	—			(1		)
Less:
Net losses realized as a yield adjustment in interest on investment securities	(2		)	(4		)
Less: Benefit for income taxes	(1		)	(1		)
Reclassification adjustment for net losses realized as a yield adjustment included in net income, net of tax	(1		)	(3		)
Change in net unrealized gains (losses) on investment securities, net of tax	122			(7		)
Balance at end of period, net of tax	$	131		$	30

Accumulated defined benefit pension and other postretirement plans adjustment:
Balance at beginning of period, net of tax	$	(438	)	$	(449	)

Amortization of actuarial net loss	19			35
Less: Provision for income taxes	7			12
Change in defined benefit pension and other postretirement plans adjustment, net of tax	12			23
Balance at end of period, net of tax	$	(426	)	$	(426	)
Total accumulated other comprehensive loss at end of period, net of tax	$	(295	)	$	(396	)