STATEMENTS OF CONSOLIDATED COMPREHENSIVE INCOME - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income		$ 321.7	$ 245.2
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustments	[1]	(218.7)	7.9
Pension and other postretirement benefit adjustments:
Amounts reclassified from Other comprehensive (loss) income	[2]	0.6	(0.4)
Total pension and other postretirement benefit adjustments		0.6	(0.4)
Unrealized net gains on cash flow hedges:
Amounts reclassified from Other comprehensive (loss) income	[3]	(3.5)	(1.5)
Total unrealized net gains on cash flow hedges		(3.5)	(1.5)
Other comprehensive (loss) income		(221.6)	6.0
Comprehensive income		$ 100.1	$ 251.2

[1] The three months ended March 31, 2020 includes unrealized gains of $9.2 million, net of taxes of $(2.9) million, related to the net investment hedges. See Note 12 for additional information.

[2] Net of taxes of $(0.2) million and $0.1 million in the three months ended March 31, 2020 and 2019, respectively.

[3] Net of taxes of $1.2 million and $0.5 million in the three months ended March 31, 2020 and 2019, respectively.