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Equity , Range of Options (Details)
shares in Millions
 12 Months Ended
Dec. 31, 2021
$ / shares
shares
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Options Outstanding, Number Outstanding (in shares) | shares 2.7
Options Exercisable, Number Exercisable (in shares) | shares 1.7
$23.83-$23.83  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise Price, minimum (in dollars per share) $ 23.83
Exercise Price, maximum (in dollars per share) $ 23.83
Options Outstanding, Number Outstanding (in shares) | shares 0.3
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 1 year 1 month 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 23.83
Options Exercisable, Number Exercisable (in shares) | shares 0.3
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 23.83
$31.39-$39.49  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise Price, minimum (in dollars per share) 31.39
Exercise Price, maximum (in dollars per share) $ 39.49
Options Outstanding, Number Outstanding (in shares) | shares 0.3
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 1 year 10 months 24 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 36.43
Options Exercisable, Number Exercisable (in shares) | shares 0.4
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 36.43
$48.83-$72.75  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise Price, minimum (in dollars per share) 48.83
Exercise Price, maximum (in dollars per share) $ 72.75
Options Outstanding, Number Outstanding (in shares) | shares 0.5
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 3 years
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 50.10
Options Exercisable, Number Exercisable (in shares) | shares 0.5
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 49.91
$76.22-$343.51  
Share-based Payment Arrangement, Option, Exercise Price Range [Line Items]  
Exercise Price, minimum (in dollars per share) 76.22
Exercise Price, maximum (in dollars per share) $ 343.51
Options Outstanding, Number Outstanding (in shares) | shares 1.6
Options Outstanding, Weighted Average Remaining Contractual Life (in years) 5 years 2 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share) $ 131.05
Options Exercisable, Number Exercisable (in shares) | shares 0.5
Options Exercisable, Weighted Average Exercise Price (in dollars per share) $ 98.79