Income Taxes - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 12 Months Ended | |
|---|---|---|---|---|
Jan. 01, 2018 |
Dec. 31, 2017 |
Dec. 31, 2017 |
Jun. 30, 2018 |
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| Effective Income Tax Reconciliation [Line Items] | ||||
| U.S. federal corporate tax rate | 35.00% | 35.00% | ||
| Increase in provision for income taxes | $ 413.0 | $ 424.1 | ||
| Transition tax | 340.9 | 340.9 | ||
| Increase in income tax expense from re-measurement of deferred tax assets and liabilities | 101.1 | 101.1 | ||
| Decrease related to reduction of U.S. federal corporate tax rate | 25.0 | 25.0 | ||
| Provisional tax amount included as a component of income tax expense from continuing operations | 442.0 | 442.0 | ||
| Amount of unrecorded benefit | $ 12.6 | $ 12.6 | ||
| Forecast | ||||
| Effective Income Tax Reconciliation [Line Items] | ||||
| U.S. federal corporate tax rate, blended rate | 28.10% | |||
| Subsequent Event | ||||
| Effective Income Tax Reconciliation [Line Items] | ||||
| U.S. federal corporate tax rate | 21.00% |
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- Definition Change In Income Tax Expense (Benefit) From Prior Period No definition available.
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- Definition Change In Income Tax Expense (Benefit) From Prior Period, Decrease In Enacted Tax Rate No definition available.
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- Definition Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Amount No definition available.
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- Definition Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Blended Rate No definition available.
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- Definition [Line Items] for Effective Income Tax Reconciliation [Table] No definition available.
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to repatriation of foreign earnings. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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