Tax Effects of Temporary Differences Representing Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets:
Accrued expenses	$ 210.9	$ 205.3
Net operating loss and tax credit carryforwards	124.9	140.1
Inventory adjustments	39.7	34.3
Allowance for losses on receivables	36.5	36.0
Goodwill and intangibles	5.8	10.0
Other	66.1	88.6
Deferred Tax Assets, Gross, Total	483.9	514.3
Valuation allowance	(109.3)	(102.1)
Deferred Tax Assets, Net of Valuation Allowance, Total	374.6	412.2
Liabilities:
Financial Services leasing depreciation	(547.1)	(765.1)
Depreciation and amortization	(169.0)	(168.0)
Postretirement benefit plans	(86.5)	(3.0)
Other	(31.1)	(46.1)
Deferred Tax Liability, Total	(833.7)	(982.2)
Net deferred tax liability	$ (459.1)	$ (570.0)