Restructuring (2020 Restructuring Plan) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			$ 22.8		$ 29.2	$ 72.6
Payments for Restructuring			(25.7)		(59.4)
Restructuring and Related Cost, Incurred Cost			(32.9)		(78.3)
Restructuring Reserve, Translation and Other Adjustment			1.7		(2.2)
Restructuring and Related Cost, Cost Incurred to Date			50.5	[1]	104.6
Restructuring Reserve, Reimbursable Restructuring Charges		$ 26.4
Corporate (Other)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		30.4
Emerging Markets | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		94.1	8.4
Greater China | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		5.8	18.4
JANZ | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		138.1	2.9		4.2
Developed Markets | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date		623.8	292.1		100.4
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			20.0		26.4	60.8
Payments for Restructuring			(18.1)		(48.9)
Restructuring and Related Cost, Incurred Cost			0.0		0.0
Restructuring Reserve, Translation and Other Adjustment			1.8		(2.1)
Restructuring and Related Cost, Cost Incurred to Date			9.9	[1]	16.6
Restructuring Reserve, Reimbursable Restructuring Charges		26.4
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve			2.8		2.8	$ 11.8
Payments for Restructuring			(7.6)		(10.5)
Restructuring and Related Cost, Incurred Cost			(32.9)		(78.3)
Restructuring Reserve, Translation and Other Adjustment			(0.1)		(0.1)
Restructuring and Related Cost, Cost Incurred to Date			40.6	[1]	$ 88.0
Restructuring Reserve, Reimbursable Restructuring Charges		0.0
2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 296.7	296.7	267.4
Payments for Restructuring		(537.2)	(25.5)
Restructuring and Related Cost, Incurred Cost		(345.0)	(70.8)
Restructuring Reserve, Translation and Other Adjustment		(7.1)	0.4
Restructuring and Related Cost, Cost Incurred to Date		892.2	271.3
Restructuring Reserve, Acquired During Period			92.0
2020 Restructuring Plan | Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	1,400.0
Restructuring Reserve, Settled without Cash	450.0
Restructuring and Related Cost, Expected Cost Remaining	950.0	950.0
2020 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	292.6	292.6	262.6
Payments for Restructuring		(385.5)	(25.1)
Restructuring and Related Cost, Incurred Cost		0.0	0.0
Restructuring Reserve, Translation and Other Adjustment		(7.0)	0.4
Restructuring and Related Cost, Cost Incurred to Date		396.1	195.6
Restructuring Reserve, Acquired During Period			91.7
2020 Restructuring Plan | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 4.1	4.1	4.8
Payments for Restructuring		(151.7)	(0.4)
Restructuring and Related Cost, Incurred Cost		(345.0)	(70.8)
Restructuring Reserve, Translation and Other Adjustment		(0.1)	0.0
Restructuring and Related Cost, Cost Incurred to Date		$ 496.1	75.7
Restructuring Reserve, Acquired During Period			$ 0.3

[1] For the year ended December 31, 2021, total restructuring charges for the 2020 Restructuring Program, in Developed Markets, Greater China, JANZ, Emerging Markets, and Corporate/Other were approximately $623.8 million, $5.8 million, $138.1 million, $94.1 million, and $30.4 million, respectively. (2)     For the year ended December 31, 2020, total restructuring charges, for both programs, in Developed Markets, Greater China, JANZ, and Emerging Markets were approximately $292.1 million, $18.4 million, $2.9 million, and $8.4 million, respectively. (3)     For the year ended December 31, 2019, total restructuring charges for the 2016 Restructuring Program in Developed Markets and JANZ were approximately $100.4 million and $4.2 million, respectively.