Defined Contribution and Defined Benefit Retirement - Schedule of Funded Status (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized in the Consolidated Balance Sheets:
Pension asset	$ 9.0	$ 8.4
Noncurrent	(291.1)	(379.0)
Defined Benefit Pension Plans
Change in plan assets:
Fair value at beginning of the year	548.2
Fair value at end of the year	533.9	548.2
Defined Benefit Pension Plans | U.S.
Change in benefit obligation:
Balance at beginning of the year	63.2	60.6
Interest cost	1.3	1.9	$ 2.3
Actuarial losses (gains)	(1.8)	5.0
Settlements	(0.5)
Benefits paid	(4.2)	(4.3)
Balance at end of the year	58.0	63.2	60.6
Change in plan assets:
Fair value at beginning of the year	53.3	48.4
Actual return on plan assets	1.7	6.8
Employer contributions	1.6	2.4
Benefits paid	(4.2)	(4.3)
Fair value at end of the year	52.4	53.3	48.4
Funded status	(5.6)	(9.9)
Amounts recognized in the Consolidated Balance Sheets:
Current	(0.1)	(0.2)
Noncurrent	(5.5)	(9.7)
Total recognized in balance sheet	(5.6)	(9.9)
Accumulated other comprehensive (income) loss:
Accumulated other comprehensive loss Actuarial losses	33.2	36.7
Total amount recognized in balance sheet and AOCI	27.6	26.8
Accumulated benefit obligations ("ABO")	$ 58.0	$ 63.2
Defined Benefit Plan, Funding Status [Extensible List]	us-gaap:FundedPlanMember	us-gaap:FundedPlanMember
Defined Benefit Pension Plans | Non U.S.
Change in benefit obligation:
Balance at beginning of the year	$ 855.8	$ 746.4
Service cost	14.7	13.3	12.8
Interest cost	8.3	10.1	13.5
Participants' contributions	2.0	1.9
Actuarial losses (gains)	(43.9)	47.5
Change in currency exchange rates	(55.2)	58.8
Benefits paid	(23.6)	(22.2)
Balance at end of the year	758.1	855.8	746.4
Change in plan assets:
Fair value at beginning of the year	494.8	450.0
Actual return on plan assets	16.7	19.2
Employer contributions	18.7	16.0
Participants' contributions	2.0	1.9
Change in currency exchange rates	(27.1)	29.9
Benefits paid	(23.6)	(22.2)
Fair value at end of the year	481.5	494.8	$ 450.0
Funded status	(276.6)	(361.0)
Amounts recognized in the Consolidated Balance Sheets:
Pension asset	9.0	8.4
Noncurrent	(285.6)	(369.4)
Total recognized in balance sheet	(276.6)	(361.0)
Accumulated other comprehensive (income) loss:
Accumulated other comprehensive loss Actuarial losses	238.3	307.0
Accumulated other comprehensive (income) loss - Prior service credit	0.4	0.7
Accumulated other comprehensive loss, Total	238.7	307.7
Total amount recognized in balance sheet and AOCI	(37.9)	(53.3)
Accumulated benefit obligations ("ABO")	$ 733.8	$ 838.2
Defined Benefit Plan, Funding Status [Extensible List]	us-gaap:FundedPlanMember	us-gaap:FundedPlanMember