Annual report pursuant to Section 13 and 15(d)

Stock-Based Awards (Summary Of Status Of Outstanding Stock Options And SARs) (Details)

v2.4.0.6
Stock-Based Awards (Summary Of Status Of Outstanding Stock Options And SARs) (Details) (Stock Options And Stock Appreciation Rights [Member], USD $)
 12 Months Ended
Dec. 31, 2012
Stock Options And Stock Appreciation Rights [Member]
  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Outstanding, beginning balance (in shares) 4,009,427
Granted (in shares) 357,415
Exercised (in shares) (1,542,969)
Forfeited (in shares) 0
Expired (in shares) (47,180)
Outstanding, ending balance (in shares) 2,776,693 [1]
Vested and expected to vest at December 31, 2012 (in shares) 2,722,267
Exercisable at December 31, 2012 (in shares) 2,041,397
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]  
Outstanding at January 1, 2012, weighted average exercise price (in usd per share) $ 22.63
Granted, weighted average exercise price (in usd per share) $ 35.69
Exercised, weighted average exercise price (in usd per share) $ 15.61
Forfeited, weighted average exercise price (in usd per share) $ 0.00
Expired, weighted average exercise price (in usd per share) $ 18.85
Outstanding at December 31, 2012, weighted average exercise price (in usd per share) $ 28.28 [1]
Vested and expected to vest at December 31, 2012, weighted average exercise price (in usd per share) $ 28.18
Exercisable at December 31, 2012, weighted average exercise price (in usd per share) $ 27.44
Outstanding at December 31, 2012, Weighted Average Remaining Contractual Term 6 years 1 month 6 days [1]
Vested and expected to vest at December 31, 2012, Weighted Average Remaining Contractual Term 6 years 1 month 6 days
Exercisable at December 31, 2012, Weighted Average Remaining Contractual Term 5 years 3 months 18 days
Outstanding at December 31, 2012, Aggregate Intrinsic Value $ 74,407,602 [1]
Vested and expected to vest at December 31, 2012, Aggregate Intrinsic Value 73,229,471
Exercisable at December 31, 2012, Aggregate Intrinsic Value $ 56,433,155
Stock options held by employees of spincos 300,000
[1] (1)Approximately 0.3 million stock options outstanding as of December 31, 2012 were held by employees of the other Spincos.