STOCKHOLDER'S EQUITY (Tables)

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Changes in Accumulated Other Comprehensive Income

The following table provides the components of changes in AOCI for the three and nine months ended September 30, 2017 and 2016:

	Three months ended					Nine months ended
	September 30,					September 30,
(in millions)	2017		2016			2017		2016
Balance at the beginning of period	$	—	$	(3	)	$	2	$	4
Derivative instruments
Reclassification of net loss relating to interest rate cash flow hedges from AOCI to earnings (net of tax of less than $1 for the three months ended September 30, 2017 and the nine months ended September 30, 2017 and 2016) (a)	1		—			1		1
Gain (loss) on interest rate swaps relating to interest rate cash flow hedges (net of tax of $1 for the three months ended September 30, 2017 and $6 for the nine months ended September 30, 2016)	2		—			—		(8		)
Total other comprehensive income (loss), net of tax	3		—			1		(7		)
Balance at the end of period (b)	$	3	$	(3	)	$	3	$	(3	)

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(a) The reclassification of net loss relating to interest rate cash flow hedges is reported in interest expense on a pre-tax basis.

(b) Includes unrealized gains on available-for-sale securities, net of tax, of less than $1 million for the three and nine months ended September 30, 2017 and 2016.