Supplemental Financial Statement Information - Accounts Receivable (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts receivable	$ (60.9)	$ (63.7)
Total accounts receivable, net	1,675.9	1,532.6
Accounts Receivable Trade [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	1,581.0	1,499.9
Accounts Receivable Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 155.8	$ 96.4