CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Total
Balance at Dec. 31, 2013	$ 4,000,000	$ 969,000,000	$ 2,653,000,000	$ (4,000,000)	$ 3,622,000,000
Balance, shares at Dec. 31, 2013	352,938,584				352,938,584
Comprehensive income (loss):
Net income			401,000,000		401,000,000
Other comprehensive loss				(8,000,000)	(8,000,000)	[1]
Comprehensive income (loss)			401,000,000	(8,000,000)	393,000,000
Stock-based compensation		18,000,000			18,000,000
Exercise of stock options		9,000,000			9,000,000
Balance at Jun. 30, 2014	$ 4,000,000	$ 996,000,000	$ 3,054,000,000	$ (12,000,000)	$ 4,042,000,000
Balance, shares at Jun. 30, 2014	353,161,843				353,161,843

[1] All amounts are net of tax.