v2.4.0.6

Net Income Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Numerator for Basic and Diluted Earnings per Share - [Abstract]
Net Income	$ 494,725	$ 324,009
Denominator for Basic Earnings per Share - [Abstract]
Weighted Average Shares	269,358,000	266,674,000
Potential Dilutive Common Shares -[Abstract]
Stock Options/SARs	1,099,000	1,800,000
Restricted Stock/Units and Performance Units/Stock	1,806,000	1,768,000
Denominator for Diluted Earnings per Share - [Abstract]
Adjusted Diluted Weighted Average Shares	272,263,000	270,242,000
Net Income Per Share [Abstract]
Basic	$ 1.84	$ 1.22
Diluted	$ 1.82	$ 1.20
Antidilutive Stock Options and SARs excluded from Diluted Earnings Per Share Calculation	100,000	100,000

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