Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Summary of Changes in Accumulated Other Comprehensive Loss

The following table presents changes in accumulated other comprehensive loss balances.

	2016			2015
	(in millions)
Three Months Ended June 30,
Unrealized gains (losses) on cash flow hedging instruments:
Balance at beginning of period	$	(7	)	$	(41	)
Other comprehensive income for period:
Net gains arising during period, net of tax of $2 million and $4 million, respectively	4			7
Reclassification adjustment for losses realized in net income, net of tax of $1 million and $1 million, respectively(1)	3			2
Total other comprehensive income for period	7			9
Balance at end of period	—			(32		)
Pension and postretirement benefit plan liability:
Balance at beginning of period	28			(13		)
Other comprehensive income for period:
Reclassification adjustment for gains realized in net income, net of tax of $- million and $- million, respectively	(2		)	—
Total other comprehensive loss for period	(2		)	—
Balance at end of period	26			(13		)
Total accumulated other comprehensive gain (loss) at end of period	$	26		$	(45	)
Six Months Ended June 30,
Unrealized gains (losses) on cash flow hedging instruments:
Balance at beginning of period	$	(15	)	$	(52	)
Other comprehensive income for period:
Net gains arising during period, net of tax of $6 million and $9 million, respectively	11			16
Reclassification adjustment for losses realized in net income, net of tax of $3 million and $2 million, respectively(1)	4			4
Total other comprehensive income for period	15			20
Balance at end of period	—			(32		)
Pension and postretirement benefit plan liability:
Balance at beginning of period	29			(13		)
Other comprehensive income for period:
Reclassification adjustment for gains realized in net income, net of tax of $(1) million and $- million, respectively	(3		)	—
Total other comprehensive loss for period	(3		)	—
Balance at end of period	26			(13		)
Total accumulated other comprehensive gain (loss) at end of period	$	26		$	(45	)

⁽¹⁾  The amounts reclassified during the three and six months ended June 30, 2016 and 2015 relate to interest rate and currency swaps and are included as a component of interest expense in our consolidated statement of income.