Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions |
Mar. 31, 2019 |
Mar. 31, 2018 |
|---|---|---|
| Deferred tax assets: | ||
| Intangible assets | $ 1,209.8 | $ 0.0 |
| Asbestos liability | 349.3 | 382.9 |
| Other provisions and accruals | 55.6 | 37.7 |
| Net operating loss carryforwards | 69.9 | 25.5 |
| Foreign and research tax credit carryforwards | 115.5 | 126.1 |
| Total deferred tax assets | 1,800.1 | 572.2 |
| Valuation allowance | (267.6) | (129.6) |
| Total deferred tax assets net of valuation allowance | 1,532.5 | 442.6 |
| Deferred tax liabilities: | ||
| Depreciable and amortizable assets | (132.2) | (81.6) |
| Other | (38.5) | (14.6) |
| Total deferred tax liabilities | (170.7) | (96.2) |
| Total deferred taxes, net | $ 1,361.8 | $ 346.4 |
| X | ||||||||||
- Definition Deferred Tax Assets, Intangible Assets No definition available.
|
| X | ||||||||||
- Definition The anticipated tax benefit available to the Company in future periods resulting from the Company's previous contributions to AICF in accordance with the Amended and Restated Final Funding Agreement (AFFA). No definition available.
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of deferred tax liability attributable to taxable temporary differences from long-lived assets other than property, plant, and equipment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|