Goodwill and Intangible Assets (Changes in Carrying Amount of Goodwill) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, net, beginning balance	$ 10,425.8
Acquisitions	95.3
Goodwill, Transfers	(65.9)
Foreign currency translation	(177.1)
Goodwill	10,278.1	$ 10,425.8
Developed Markets
Goodwill [Roll Forward]
Goodwill, net, beginning balance	7,461.5
Acquisitions	95.3
Goodwill, Transfers	(49.7)
Foreign currency translation	(128.7)
Goodwill	7,378.4	7,461.5
Goodwill, Impaired, Accumulated Impairment Loss	(385.0)	(385.0)
Greater China
Goodwill [Roll Forward]
Goodwill, net, beginning balance	940.6
Acquisitions	0.0
Goodwill, Transfers	0.0
Foreign currency translation	(0.9)
Goodwill	939.7	940.6
JANZ
Goodwill [Roll Forward]
Goodwill, net, beginning balance	689.0
Acquisitions	0.0
Goodwill, Transfers	0.0
Foreign currency translation	(36.8)
Goodwill	652.2	689.0
Emerging Markets Segment
Goodwill [Roll Forward]
Goodwill, net, beginning balance	1,334.7
Acquisitions	0.0
Goodwill, Transfers	(16.2)
Foreign currency translation	(10.7)
Goodwill	1,307.8	1,334.7
Goodwill, Impaired, Accumulated Impairment Loss	$ (117.0)	$ (117.0)