Financial Instruments, Risk Management Activities, and Fair Values (Schedule of interest rate hedge in AOCI) (Details) $ in Millions	12 Months Ended
	May 29, 2016 USD ($)
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (49.5)
5.7% Notes Due February 15, 2017 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (1.6)
Derivative, Maturity Date	Feb. 15, 2017
Debt Instrument, Interest Rate, Stated Percentage	5.70%
5.65% Notes Due February 15, 2019 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 1.4
Derivative, Maturity Date	Feb. 15, 2019
Debt Instrument, Interest Rate, Stated Percentage	5.65%
3.15% Notes Due December 15, 2021 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (54.9)
Derivative, Maturity Date	Dec. 15, 2021
Debt Instrument, Interest Rate, Stated Percentage	3.15%
Euro-denominated 1.0% Notes Due April 27, 2023 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (1.7)
Derivative, Maturity Date	Apr. 27, 2023
Debt Instrument, Interest Rate, Stated Percentage	1.00%
3.65% Notes Due February 15, 2024 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 13.8
Derivative, Maturity Date	Feb. 15, 2024
Debt Instrument, Interest Rate, Stated Percentage	3.65%
Euro-denominated 1.5% Notes Due April 27, 2027 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (3.6)
Derivative, Maturity Date	Feb. 27, 2027
Debt Instrument, Interest Rate, Stated Percentage	1.50%
5.4% Notes Due June 15, 2040 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ (13.4)
Derivative, Maturity Date	Jun. 15, 2040
Debt Instrument, Interest Rate, Stated Percentage	5.40%
4.15% Notes Due February 15, 2043 [Member]
Debt Instrument [Line Items]
Pre-tax hedge gain (loss) in AOCI	$ 10.5
Derivative, Maturity Date	Feb. 15, 2043
Debt Instrument, Interest Rate, Stated Percentage	4.15%