Allowance for Credit Losses (Detail) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Provision for losses		$ 3.8	$ 3.2
Dealer | Wholesale
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance		3.3
Ending Balance		3.5
Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance		2.1
Ending Balance		3.1
Financial Services
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance		116.9	127.0
Provision for losses		3.8	3.2
Charge-offs		(6.4)	(11.0)
Recoveries		7.1	4.3
Currency translation and other		(3.5)	(1.8)
Ending Balance		117.9	121.7
Financial Services | Dealer | Wholesale
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance		3.3	3.4
Provision for losses		0.4	(1.0)
Recoveries		0.1
Currency translation and other		(0.3)
Ending Balance		3.5	2.4
Financial Services | Dealer | Retail
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance		7.1	8.4
Provision for losses		(3.3)	(0.7)
Ending Balance		3.8	7.7
Financial Services | Customer Retail
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance		104.4	112.0
Provision for losses		8.1	3.5
Charge-offs		(6.3)	(9.7)
Recoveries		5.2	4.1
Currency translation and other		(3.9)	(1.7)
Ending Balance		107.5	108.2
Financial Services | Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning Balance	[1]	2.1	3.2
Provision for losses	[1]	(1.4)	1.4
Charge-offs	[1]	(0.1)	(1.3)
Recoveries	[1]	1.8	0.2
Currency translation and other	[1]	0.7	(0.1)
Ending Balance	[1]	$ 3.1	$ 3.4

[1] Operating leases and other trade receivables.