Quarterly report pursuant to Section 13 or 15(d)

Share-Based Compensation (Details)

v2.4.0.6
Share-Based Compensation (Details) (USD $)
In Millions, except Share data, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Y
Stock Options & Stock Appreciation Rights  
Weighted Average Exercise Price Outstanding, Ending Balance $ 24.26
Award Outstanding, Beginning Balance 11,169,000
Granted, Awards 20,000
Exercised, Awards (1,304,000)
Forfeited, Awards (14,000)
Award Outstanding, Ending Balance 9,871,000
Awards Exercisable, Ending Balance 5,726,000
Granted, Weighted Average Exercise Price $ 67.70
Exercised, Weighted Average Exercise Price $ 10.05
Forfeited, Weighted Average Exercise Price $ 37.29
Weighted Average Exercise Price Outstanding, Beginning Balance $ 22.54
Exercisable, Weighted Average Exercise Price, Ending Balance $ 15.82
Weighted Average Remaining Contractual Term Outstanding, Beginning Balance 5.5
Weighted Average Remaining Contractual Term Outstanding, Ending Balance 5.7
Exercisable, Weighted Average Remaining Contractual Term, Ending Balance 4.3
Aggregate Intrinsic Value Outstanding, Beginning balance $ 332.8
Aggregate Intrinsic Value Outstanding, Ending balance 439.9
Exercisable, Aggregate Intrinsic Value, Ending Balance $ 303.5
Incentive Plan and Independent Directors Stock Units  
Outstanding and nonvested at December 31, 2011, Shares 717,600
Granted, shares   
Vested, Shares (301,900)
Forfeited, Shares (200)
Outstanding and nonvested at March 31, 2012, Shares 415,500
Outstanding and nonvested at December 31, 2011, Weighted Average Grant Date Fair Value $ 12.25
Granted, Weighted Average Grant Date Fair Value   
Vested, Weighted Average Grant Date Fair Value $ 9.52
Forfeited, Weighted Average Grant Date Fair Value $ 6.82
Outstanding and nonvested at March 31, 2012, Weighted Average Grant Date Fair Value $ 14.24