Segment Information - Summary of Net Sales and Operating Profit by Segment (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net Sales And Operating Profit Information [Line Items]
Net Sales		$ 1,226.1	$ 1,988.6	$ 3,009.9	$ 3,964.1
Operating (Loss) Profit		(171.7)	204.7	(627.7)	554.9
Intangible asset amortization		(147.7)	(146.9)	(295.3)	(290.3)
Intangible asset impairment		(33.0)	(70.1)	(645.0)	(70.1)
Restructuring and other cost reduction initiatives		(28.0)	(6.9)	(73.0)	(11.6)
Quality remediation		(9.7)	(22.7)	(26.1)	(42.4)
Acquisition, integration and related		(2.2)	(5.1)	(6.6)	(11.1)
Litigation settlement gain	$ 50.0				23.5
Americas and Global Businesses [Member]
Net Sales And Operating Profit Information [Line Items]
Net Sales		757.5	1,255.1	1,894.1	2,490.7
Operating (Loss) Profit		83.0	427.2	451.8	817.2
EMEA [Member]
Net Sales And Operating Profit Information [Line Items]
Net Sales		218.7	438.0	616.8	901.9
Asia Pacific [Member]
Net Sales And Operating Profit Information [Line Items]
Net Sales		273.7	336.3	558.1	653.8
Corporate Functions [Member]
Net Sales And Operating Profit Information [Line Items]
Operating (Loss) Profit		(111.6)	(117.5)	(215.6)	(235.2)
Operating Segments | EMEA [Member]
Net Sales And Operating Profit Information [Line Items]
Net Sales		204.1	405.8	575.4	834.7
Operating (Loss) Profit		20.0	117.5	128.8	256.7
Operating Segments | Asia Pacific [Member]
Net Sales And Operating Profit Information [Line Items]
Net Sales		264.5	327.7	540.4	638.7
Operating (Loss) Profit		78.4	118.0	171.0	231.5
Segment Reconciling Items [Member]
Net Sales And Operating Profit Information [Line Items]
Inventory and manufacturing-related charges		(1.4)	(34.1)	(2.0)	(36.1)
Intangible asset amortization		(147.7)	(146.9)	(295.3)	(290.3)
Intangible asset impairment				(645.0)	(70.1)
Restructuring and other cost reduction initiatives		(28.0)	(6.9)	(73.0)	(11.6)
Quality remediation		(9.9)	(23.4)	(25.8)	(43.1)
Acquisition, integration and related		(2.2)	(5.1)	(6.6)	(11.1)
Litigation		(1.3)	(7.0)	(81.1)	(5.2)
European Union Medical Device Regulation		(6.1)	(5.1)	(17.1)	(6.7)
Other charges		$ (11.9)	$ (41.9)	$ (17.8)	$ (64.6)