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Long-Term Incentive Employee Compensation (Details 1) (USD $) In Millions, except Per Share data, unless otherwise specified | 2 Months Ended | 10 Months Ended
--- | --- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Oct. 31, 2011 | Oct. 31, 2010 | Oct. 31, 2009
Stock options outstanding rollforward |  |  |  |  |  |
Outstanding, shares | 8.0 | 0 | 0 | 3.7 | 4.0 | 4.1
Outstanding, Weighted Average Exercise Price | $ 16.18 | $ 0 | $ 0 | $ 85.08 | $ 80.58 | $ 79.66
Stock options granted, shares | 0.7 | 0 | 0 | 0.3 | 0.4 | 0.4
Stock options granted, Weighted Average Exercise Price | $ 20.28 | $ 0.00 | $ 0.00 | $ 115.36 | $ 106.60 | $ 67.18
Stock options exercised, shares | (0.7) | 0 | 0 | (0.7) | (0.6) | (0.4)
Stock options exercised, Weighted Average Exercise Price | $ 13.87 | $ 0.00 | $ 0.00 | $ 76.27 | $ 62.90 | $ 52.64
Stock options cancelled or expired, shares |  |  |  | (1.3) | (0.1) | (0.1)
Stock options cancelled or expired, Weighted Average Exercise Price |  |  |  | $ 92.76 | $ 97.56 | $ 91.88
Outstanding on Distribution Date before equitable adjustment, Shares |  |  |  | 2.0 | 0 | 0
Outstanding on Distribution Date before equitable adjustment, Weighted Average Exercise Price |  |  |  | $ 88.52 | $ 0.00 | $ 0.00
Outstanding on Distribution Date after equitable adjustment | 8.0 | 3.7 | 4.0 | 8.0 | 0 | 0
Outstanding, Weighted Average Exercise Price | $ 16.70 | $ 85.08 | $ 80.58 | $ 16.18 | $ 0 | $ 0
Stock options exercisable at the end of year, shares | 6.3 | 3.0 | 3.2 |  |  |
Stock options exercisable at the end of year, Weighted Average Exercise Price | $ 16.03 | $ 83.72 | $ 78.98 |  |  |

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