Financial Instruments (Details 2) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017
Reclassification of hedge gain (loss) from accumulated OCI into income
Cost of goods sold	$ (661.6)	$ (668.4)	$ (1,156.5)	$ (1,164.3)
Other income (expense), net	0.4	0.2	(1.6)	(0.3)
Designated as Hedging Instrument [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(4.4)	(29.2)	60.9	(88.6)
Designated as Hedging Instrument [Member] \| Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	4.8	2.0	9.1	3.8
Designated as Hedging Instrument [Member] \| Foreign Exchange Forward [Member] \| Cash Flow Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	1.3	(6.8)	27.4	(25.9)
Designated as Hedging Instrument [Member] \| Reclassification out of Accumulated Other Comprehensive Income (Loss) [Member] \| Foreign Exchange Forward [Member] \| Cash Flow Hedging [Member]
Reclassification of hedge gain (loss) from accumulated OCI into income
Cost of goods sold	0.7	(2.4)	(5.5)	1.6
Other income (expense), net	0.7	(0.4)	2.1	(1.0)
Effective portion [Member] \| Designated as Hedging Instrument [Member] \| Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	2.8	(22.4)	40.2	(62.7)
Portion excluded from assessment of hedge effectiveness [Member] \| Designated as Hedging Instrument [Member] \| Net Investment Hedging [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	(8.5)	0.0	(6.7)	0.0
Derivative, Excluded Component, Gain (Loss), Recognized in Earnings	$ 4.8	$ 2.0	$ 9.1	$ 3.8

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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