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Pension and Post-Employment Benefits - Plan Net Pension Credit (Detail) - United Kingdom Plan [Member] - Nonoperating Income (Expense) [Member] $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 2.4
Interest cost on PBO	11.0
Expected return on plan assets	(17.5)
Amortization of prior service credit	0.5
Amortization of actuarial net losses	0.0
Net periodic benefit	$ (3.6)

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