STATEMENTS OF CONSOLIDATED STOCKHOLDER'S EQUITY (USD $) In Millions, except Share data	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Defined Benefit Plans Adjustment [Member]	Accumulated Other Comprehensive Loss [Member]
Balance at Dec. 31, 2011		$ 0	$ 2,416	$ 1,664
Balance (in shares) at Dec. 31, 2011		1,000
Adjustments to Additional Paid in Capital, Other			0
Net income	137			137
Cash Dividends Paid to Parent Company				0
Balance at Dec. 31, 2012	4,216	0	2,416	1,801	(1)	(1)
Balance (in shares) at Dec. 31, 2012		1,000
Adjustments to Additional Paid in Capital, Other			0
Net income	64			64
Cash Dividends Paid to Parent Company				0
Balance at Dec. 31, 2013	4,286	0	2,416	1,865	5	5
Balance (in shares) at Dec. 31, 2013		1,000
Adjustments to Additional Paid in Capital, Other			1
Net income	323			323
Cash Dividends Paid to Parent Company				(405)
Balance at Dec. 31, 2014	$ 4,201	$ 0	$ 2,417	$ 1,783	$ 1	$ 1
Balance (in shares) at Dec. 31, 2014		1,000