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Equity, Stock-Based Compensation (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Expense incurred for stock-based compensation plans									$ 70.5	$ 63.0	$ 55.6
Recognized tax benefit related to stock-based compensation									50.7	46.0	27.5
Excess tax benefit from option exercises	$ 14.8	$ 10.7	$ 12.4	$ 5.0	$ 16.8	$ 1.6	$ 12.9	$ 6.8	42.8	38.1	19.8
Selling, General and Administrative Expenses
Expense incurred for stock-based compensation plans									$ 70.5	$ 63.0	$ 55.6

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of tax benefit from exercise of option under share-based payment arrangement.

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