Financing Arrangements (Schedule of Long-term Debt) (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	9 Months Ended	12 Months Ended
	Dec. 17, 2012	Dec. 30, 2012	Apr. 01, 2012
Debt Instrument [Line Items]
Long-term debt		$ 3,825.7	$ 208.2
Less: Long-term debt currently due		204.9	0.5
Total		3,620.8	207.7
Interest rate, stated percentage		5.60%
5.60% Public notes due fiscal 2014
Debt Instrument [Line Items]
Long-term debt		200.0	200.0
Interest rate, stated percentage		5.60%	5.60%
Maturity date		2014	2014
0.70% Public notes due fiscal 2016
Debt Instrument [Line Items]
Long-term debt		499.9	0
Interest rate, stated percentage	0.70%	0.70%	0.70%
Maturity date	2016	2016	2016
1.25% Public notes due fiscal 2018
Debt Instrument [Line Items]
Long-term debt		998.5	0
Interest rate, stated percentage	1.25%	1.25%	1.25%
Maturity date	2018	2018	2018
2.50% Public notes due fiscal 2023
Debt Instrument [Line Items]
Long-term debt		994.3	0
Interest rate, stated percentage	2.50%	2.50%	2.50%
Maturity date	2023	2023	2023
3.90% Public notes due fiscal 2043
Debt Instrument [Line Items]
Long-term debt		496.9	0
Interest rate, stated percentage	3.90%	3.90%	3.90%
Maturity date	2043	2043	2043
Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term debt		611.3	0
Other [Member]
Debt Instrument [Line Items]
Long-term debt		$ 24.8	$ 8.2