Statements of Consolidated Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income		$ 1,864.4	$ 2,030.4	$ 1,541.3
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	[1]	(30.6)	(14.1)	(49.8)
Pension and other postretirement benefit adjustments:
Amounts recognized in other comprehensive (loss)	[2]	48.7	(19.4)	(5.1)
Amounts reclassified from other comprehensive (loss)	[3]	6.3	1.4	22.3
Pension and other postretirement benefit adjustments:		55.0	(18.0)	17.2
Unrealized net gains on cash flow hedges:
Amounts reclassified from other comprehensive (loss)	[4]	(4.5)	(6.7)	(8.7)
Other comprehensive income (loss), net of tax		19.9	(38.8)	(41.3)
Comprehensive income		$ 1,884.3	$ 1,991.6	$ 1,500.0

[1] The years ended December 31, 2021, 2020 and 2019 include unrealized gains (losses), net of taxes, of $37.1 million, $(54.0) million and $1.1 million, respectively, related to net investment hedges. See Note 15.

[2] Net of taxes of $(12.6) million, $3.4 million and $1.3 million in 2021, 2020 and 2019, respectively.

[3] Net of taxes of $(2.1) million, $(0.4) million and $(7.3) million in 2021, 2020 and 2019, respectively

[4] Net of taxes of $1.0 million, $2.2 million and $2.8 million in 2021, 2020 and 2019, respectively.