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EARNINGS PER SHARE - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Basic:
Net income	$ 225.9	$ 170.1	$ 715.2	$ 586.4
Weighted-average shares outstanding (in shares)	209.0	211.3	209.5	211.0
Basic earnings per share (in dollars per share)	$ 1.08	$ 0.81	$ 3.41	$ 2.78
Diluted:
Net income	$ 225.9	$ 170.1	$ 715.2	$ 586.4
Weighted-average shares outstanding (in shares)	209.0	211.3	209.5	211.0
Dilutive effect of stock plans (in shares)	4.2	4.9	4.6	5.1
Dilutive weighted-average shares outstanding (in shares)	213.2	216.2	214.1	216.1
Diluted earnings per share (in dollars per share)	$ 1.06	$ 0.79	$ 3.34	$ 2.71

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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