Consolidated Statement of Stockholders' Equity (Unaudited) (USD $) In Millions	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss), Net of Tax	Treasury Stock	Noncontrolling Interests
Beginning Balance at Dec. 31, 2010	$ 7,848.9	$ 4.0	$ 6,431.1	$ 1,890.3	$ 21.9	$ (500.8)	$ 2.4
Beginning Balance, shares at Dec. 31, 2010		400.2				(16.5)
Net income	204.3			204.7			(0.4)
Other comprehensive loss	(18.1)				(18.1)
Cash dividends declared	(151.1)			(151.1)
Issuances of common stock	33.5		33.5
Issuances of common stock, shares		1.4
Stock-based compensation	12.1		12.5	(0.4)
Purchase of common stock for treasury	(262.9)					(262.9)
Purchase of common stock for treasury, shares						(8.6)
Ending Balance at Jun. 30, 2011	$ 7,666.7	$ 4.0	$ 6,477.1	$ 1,943.5	$ 3.8	$ (763.7)	$ 2.0
Ending Balance, shares at Jun. 30, 2011		401.6				(25.1)