Consolidated Statements of Changes in Shareholder's Equity - USD ($) $ in Millions	Total	Common Stock	Other Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss, Net
Balance (shares) at Dec. 31, 2013		1,000
Balance at Dec. 31, 2013	$ 2,890	$ 0	$ 2,308	$ 586	$ (4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	68			68
Other	1				1
Balance (shares) at Jun. 30, 2014		1,000
Balance at Jun. 30, 2014	$ 2,959	$ 0	2,308	654	(3)
Balance (shares) at Dec. 31, 2014	1,000	1,000
Balance at Dec. 31, 2014	$ 2,888	$ 0	2,308	583	(3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	84			84
Dividends, Common Stock, Cash	$ (13)			(13)
Balance (shares) at Jun. 30, 2015	1,000	1,000
Balance at Jun. 30, 2015	$ 2,959	$ 0	$ 2,308	$ 654	$ (3)