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Stock-Based Compensation (Tables)
 6 Months Ended
May 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Stock Based Compensation in Selling, General and Administrative Expense The following table sets forth the stock-based compensation expense recorded in selling, general and administrative ("SG&A") expense (in millions):
 Three months ended May 31,Six months ended May 31,
 2020201920202019
Stock-based compensation expense$20.7  $16.1  $27.1  $22.8  
Summary of Option Activity
The following is a summary of our stock option activity for the six months ended May 31, 2020 and 2019:
 20202019
(shares in millions)Number
of
Shares		Weighted-
Average
Exercise
Price		Number
of
Shares		Weighted-
Average
Exercise
Price
Outstanding at beginning of period2.6  $96.18  3.6  $82.60  
Granted0.4  138.62  0.3  147.39  
Exercised(0.4) 77.47  (0.7) 67.71  
Outstanding at end of the period2.6  $104.21  3.2  $92.39  
Exercisable at end of the period2.0  $93.66  2.5  $83.85  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
20202019
Risk-free interest rates0.0 - 0.6%2.2 - 2.5%
Dividend yield1.8%1.5%
Expected volatility22.8%17.4%
Expected lives (in years)7.97.5
Schedule of Share-based Compensation, Restricted Stock Units Award Activity
The following is a summary of our RSU activity for the six months ended May 31, 2020 and 2019:

 20202019
(shares in thousands)Number
of
Shares		Weighted-
Average
Grant-Date
Fair Value		Number
of
Shares		Weighted-
Average
Grant-Date
Fair Value
Outstanding at beginning of period381  $115.89  423  $103.05  
Granted148  134.06  128  143.10  
Vested(137) 109.97  (134) 96.74  
Forfeited(6) 121.99  (5) 99.74  
Outstanding at end of period386  $124.85  412  $117.48  
Schedule of Share Based Compensation, Performance Shares, Activity
The following is a summary of our LTPP activity for the six months ended May 31, 2020 and 2019:
 20202019
(shares in thousands)Number
of
Shares		Weighted-
Average
Grant-Date
Fair Value		Number
of
Shares		Weighted-
Average
Grant-Date
Fair Value
Outstanding at beginning of period196  $115.96  218  $83.55  
Granted65  172.28  102  150.51  
Vested(44) 89.96  (57) 86.40  
Forfeited(1) 136.95  —  —  
Outstanding at end of period216  $138.11  263  $117.14