Financial Instruments (Details 1) (USD $) In Millions	3 Months Ended		6 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	$ 58.8	$ (41.9)	$ 41.9	$ (11.4)
Inventory purchases [Member] | Designated Cash Flow Hedge [Member]
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	32.5	(14.5)	23.8	(1.8)
I/C royalty payments [Member] | Designated Cash Flow Hedge [Member]
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	3.2	(5.6)	4.1	(7.5)
Interest payments [Member] | Designated Cash Flow Hedge [Member]
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	0	0.8	(0.4)	0
Other [Member] | Designated Cash Flow Hedge [Member]
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	(0.6)	0.5	(1.0)	0.6
Designated Cash Flow Hedge [Member]
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	35.1	(18.8)	26.5	(8.7)
Designated Net Investment Hedge [Member]
Total Gain (Loss) recognized in OCI on derivative instruments
Gains (Losses) Recognized in OCI	$ 23.7	$ (23.1)	$ 15.4	$ (2.7)