Condensed Consolidated Statements of Changes in Equity (Unaudited) (USD $) In Millions, except Share data in Thousands	Total	Comprehensive Income	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interests
Beginning Balance at Dec. 31, 2010	$ 6,591	$ 0	$ 6	$ 4,528	$ 6,400	$ 230	$ (4,904)	$ 331
Beginning Balance, shares at Dec. 31, 2010			630,282				(155,236)
Comprehensive Income:
Consolidated net income	731	731	0	0	695	0	0	36
Other comprehensive income (loss), net of taxes:
Unrealized losses resulting from changes in fair value of derivative instruments, net of taxes of $16	(25)	(25)	0	0	0	(25)	0	0
Realized gains on derivative instruments reclassified into earnings, net of taxes of $6	(9)	(9)	0	0	0	(9)	0	0
Unrealized losses on marketable securities, net of taxes of $3	(4)	(4)	0	0	0	(4)	0	0
Foreign currency translation adjustments	(46)	(46)	0	0	0	(46)	0	0
Change in funded status of post-retirement benefit obligations, net of taxes of $1	(2)	(2)	0	0	0	(2)	0	0
Other comprehensive income (loss)	(86)	(86)	0	0	0	0	0	0
Comprehensive income	645	645	0	0	0	0	0	0
Cash dividends declared	(481)		0	0	(481)	0	0	0
Equity-based compensation transactions, including dividend equivalents, net of taxes	106		0	25	(1)	0	82	0
Equity-based compensation transactions, including dividend equivalents, net of taxes, shares			0				2,572
Common stock repurchases	(546)		0	0	0	0	(546)
Common stock repurchases, shares			0				(16,424)
Distributions paid to noncontrolling interests	(30)		0	0	0	0	0	(30)
Other	0		0	0	0	0	0	0
Other, shares			0				9
Ending Balance at Sep. 30, 2011	$ 6,285	$ 0	$ 6	$ 4,553	$ 6,613	$ 144	$ (5,368)	$ 337
Ending Balance, shares at Sep. 30, 2011			630,282				(169,079)