Financial Instruments (Details) - USD ($) $ in Millions	Sep. 30, 2017	Apr. 01, 2017
Notional Amounts of Derivative Financial Instruments
Notional amount of hedges	$ 2,156.1	$ 2,099.5
Derivative Assets
Derivative Asset, Fair Value	15.7	32.6
Derivative Liabilities
Derivative Liability, Fair Value	79.4	21.7
Designated [Member]
Notional Amounts of Derivative Financial Instruments
Notional amount of hedges	1,755.9	1,724.4
Derivative Assets
Derivative Asset, Fair Value	3.9	27.3
Derivative Liabilities
Derivative Liability, Fair Value	74.8	13.1
Designated [Member] \| Foreign Exchange Forward [Member]
Notional Amounts of Derivative Financial Instruments
Notional amount of hedges	503.2	533.2
Derivative Assets
Foreign Currency Cash Flow Hedge Asset at Fair Value	3.9
Derivative Liabilities
Foreign Currency Cash Flow Hedge Liability at Fair Value	12.1
Designated [Member] \| Foreign Exchange Forward [Member] \| Prepaid Expenses and Other Current Assets [Member]
Derivative Assets
Foreign Currency Cash Flow Hedge Asset at Fair Value	3.5	17.7
Designated [Member] \| Foreign Exchange Forward [Member] \| Other Noncurrent Assets [Member]
Derivative Assets
Foreign Currency Cash Flow Hedge Asset at Fair Value	0.4
Designated [Member] \| Foreign Exchange Forward [Member] \| Accrued Expenses and Other Current Liabilities [Member]
Derivative Liabilities
Foreign Currency Cash Flow Hedge Liability at Fair Value	12.0	3.7
Designated [Member] \| Foreign Exchange Forward [Member] \| Other Noncurrent Liabilities [Member]
Derivative Liabilities
Foreign Currency Cash Flow Hedge Liability at Fair Value	0.1
Designated [Member] \| Interest Rate Swap [Member]
Notional Amounts of Derivative Financial Instruments
Notional amount of hedges	600.0	600.0
Derivative Assets
Interest Rate Fair Value Hedge Asset at Fair Value	0.0	0.0
Derivative Liabilities
Interest Rate Fair Value Hedge Liability at Fair Value	7.7
Designated [Member] \| Interest Rate Swap [Member] \| Accrued Expenses and Other Current Liabilities [Member]
Derivative Liabilities
Interest Rate Fair Value Hedge Liability at Fair Value	1.0
Designated [Member] \| Interest Rate Swap [Member] \| Other Noncurrent Liabilities [Member]
Derivative Liabilities
Interest Rate Fair Value Hedge Liability at Fair Value	6.7	9.4
Designated [Member] \| Cross Currency Interest Rate Contract [Member]
Notional Amounts of Derivative Financial Instruments
Notional amount of hedges	652.7	591.2
Derivative Assets
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value	0.0
Derivative Liabilities
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value	55.0	0.0
Designated [Member] \| Cross Currency Interest Rate Contract [Member] \| Other Noncurrent Assets [Member]
Derivative Assets
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value		9.6
Designated [Member] \| Cross Currency Interest Rate Contract [Member] \| Accrued Expenses and Other Current Liabilities [Member]
Derivative Liabilities
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value	30.9
Designated [Member] \| Cross Currency Interest Rate Contract [Member] \| Other Noncurrent Liabilities [Member]
Derivative Liabilities
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Liabilities, Fair Value	24.1
Undesignated [Member] \| Foreign Exchange Forward [Member]
Notional Amounts of Derivative Financial Instruments
Notional amount of hedges	400.2	375.1
Undesignated [Member] \| Foreign Exchange Forward [Member] \| Prepaid Expenses and Other Current Assets [Member]
Derivative Assets
Derivative Asset, Fair Value	11.8	5.3
Undesignated [Member] \| Foreign Exchange Forward [Member] \| Accrued Expenses and Other Current Liabilities [Member]
Derivative Liabilities
Derivative Liability, Fair Value	$ 4.6	$ 8.6

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 210
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Fair value as of the balance sheet date of all foreign currency derivative assets designated as cash flow hedging instruments.

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Fair value of all derivative assets designated as hedges of net investment in foreign operations.

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