CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Millions, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2013	$ 4	$ 969	$ 2,653	$ (4)	$ 3,622
Balance, shares at Dec. 31, 2013	353
Comprehensive income:
Net income			612		612
Other comprehensive income				23	23	[1]
Comprehensive income			612	23	635
Stock-based compensation		26			26
Exercise of stock options		10			10
Balance at Sep. 30, 2014	$ 4	$ 1,005	$ 3,265	$ 19	$ 4,293
Balance, shares at Sep. 30, 2014	353

[1] All amounts are net of tax.