INCOME TAXES QTR (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
INCOME TAXES
Statutory federal income tax rate (as a percent)	21.00%		35.00%
Net tax charge			$ 24.7
Recognized charge representing provisional estimate of one-time transition tax			31.6
Estimate of deferred income tax benefit related to corporate rate change			(6.8)
Effective income tax rate (as a percent)	27.00%	25.40%
Increase (decrease) in income taxes	$ 1.3
Increase in effective tax rates due to GILTI and BEAT taxes	4.30%
Decrease in effective tax rate from employee share-based compensation deductions	(2.10%)
Decrease in effective tax rate from tax settlements	(0.50%)
Income tax uncertainties	$ 3.2		3.1
Amount of income tax uncertainties that, if recognized, would impact the effective tax rate	3.2		$ 3.1
Decrease in liability for uncertain tax positions, high end of range	$ 1.4

The tax rate attributable to GILTI and BEAT taxes.

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Amount of reasonable estimate for income tax expense for remeasurement of deferred tax asset from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

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Amount of reasonable estimate for income tax expense (benefit) from effect of Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

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Amount of reasonable estimate for income tax expense from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete.

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage 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 income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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The increase (decrease) during the reporting period in the amounts payable to taxing authorities for taxes that are based on the reporting entity's earnings, net of amounts receivable from taxing authorities for refunds of overpayments or recoveries of income taxes, and in deferred and other tax liabilities and assets.

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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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