Consolidated Statements Of Stockholders' Equity (USD $) In Millions		Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income / (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest in Subsidiaries [Member]	Total
Balance, at Dec. 31, 2009		$ 2.0	$ 8,398.0	$ 0	$ 0	$ 0	$ 1.4	$ 8,401.4
Adoption of new accounting pronouncement				(18.4)			(8.4)	(26.8)
Net income				326.2			1.3	327.5
Foreign currency translation adjustments					(11.4)			(11.4)
Change in fair values of derivatives qualifying as cash flow hedges					(0.1)			(0.1)
Unrealized gain on available for sale equity investments, net					2.0			2.0
Minimum pension liability adjustment					(0.2)			(0.2)
Total comprehensive income								317.8
Restricted stock and stock option expenses			21.1			(4.0)		17.1
Balance, at Jun. 30, 2010	[1]	2.0	8,419.1	307.8	(9.7)	(4.0)	(5.7)	8,709.5
Balance, at Dec. 31, 2010		2.0	8,434.1	498.3	(9.6)	(8.8)	(2.3)	8,913.7	[2]
Net income				17.6			3.5	21.1
Foreign currency translation adjustments					(9.0)			(9.0)
Change in fair values of derivatives qualifying as cash flow hedges					0.5			0.5
Unrealized gain on available for sale equity investments, net					5.9			5.9
Minimum pension liability adjustment					(0.1)			(0.1)
Total comprehensive income								18.4
Restricted stock and stock option expenses			13.3			(2.7)		10.6
Equity distribution							0.2	0.2
Balance, at Jun. 30, 2011		$ 2.0	$ 8,447.4	$ 515.9	$ (12.3)	$ (11.5)	$ 1.4	$ 8,942.9

[1] These restated balances were disclosed in Note 26 of the Company's Form 10-K for the year ended December 31, 2010.

[2] 2010 data has been conformed to the current quarter presentation.