Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill Related to Continuing Operations (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Goodwill [Line Items]
Goodwill, Beginning Balance	$ 9,964.1	$ 10,027.8
Accumulated impairment losses, Beginning Balance	(1,044.7)	(1,044.7)
Goodwill, net of accumulated impairment losses, Beginning Balance	8,919.4	8,983.1
Purchase accounting adjustments	0.9	22.9
Other acquisitions	48.3	2.4
Currency translation	(98.6)	(89.0)
Impairment	(289.8)
Goodwill, Ending Balance	9,914.7	9,964.1	$ 10,027.8
Accumulated impairment losses, Ending Balance	(1,334.5)	(1,044.7)	(1,044.7)
Goodwill, net of accumulated impairment losses, Ending Balance	8,580.2	8,919.4	8,983.1
Americas [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	8,045.8	8,089.1
Accumulated impairment losses, Beginning Balance	(7.7)	(7.7)
Goodwill, net of accumulated impairment losses, Beginning Balance	8,038.1	8,081.4
Purchase accounting adjustments	0.9	15.4
Other acquisitions	48.3	2.4
Currency translation	(51.7)	(61.1)
Goodwill, Ending Balance	8,043.3	8,045.8	8,089.1
Accumulated impairment losses, Ending Balance	(7.7)	(7.7)	(7.7)
Goodwill, net of accumulated impairment losses, Ending Balance	8,035.6	8,038.1	8,081.4
EMEA [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	1,354.3	1,362.9
Accumulated impairment losses, Beginning Balance	(1,037.0)	(1,037.0)
Goodwill, net of accumulated impairment losses, Beginning Balance	317.3	325.9
Purchase accounting adjustments		5.2
Currency translation	(27.5)	(13.8)
Impairment	(289.8)		(470.0)
Goodwill, Ending Balance	1,326.8	1,354.3	1,362.9
Accumulated impairment losses, Ending Balance	(1,326.8)	(1,037.0)	(1,037.0)
Goodwill, net of accumulated impairment losses, Ending Balance		317.3	325.9
Asia Pacific [Member]
Goodwill [Line Items]
Goodwill, Beginning Balance	564.0	575.8
Goodwill, net of accumulated impairment losses, Beginning Balance	564.0	575.8
Purchase accounting adjustments		2.3
Currency translation	(19.4)	(14.1)
Goodwill, Ending Balance	544.6	564.0	575.8
Goodwill, net of accumulated impairment losses, Ending Balance	$ 544.6	$ 564.0	$ 575.8