Stock Plans (Tables)

9 Months Ended

Feb. 25, 2018

Stock Plans [Abstract]

Schedule of compensation expense related to stock-based payments [Table Text Block]

		Quarter Ended				Nine-MonthPeriod Ended
In Millions		Feb. 25, 2018		Feb. 26, 2017		Feb. 25, 2018		Feb. 26, 2017
Compensation expense related to stock-based payments	$	14.5	$	20.1	$	63.4	$	77.7

Schedule of net cash proceeds received from the exercise of stock options [Table Text Block]

		Nine-MonthPeriod Ended
In Millions		Feb. 25, 2018		Feb. 26, 2017
Net cash proceeds	$	91.4	$	90.5
Intrinsic value of options exercised	$	79.9	$	153.1

Schedule of estimated fair value of stock options granted and the assumptions used for the Black-Scholes option-pricing model [Table Text Block]

	Nine-Month Period Ended
	Feb. 25, 2018		Feb. 26, 2017
Estimated fair values of stock options granted	$6.18		$8.80
Assumptions:
Risk-free interest rate	2.2	%	1.7	%
Expected term	8.2 years		8.5 years
Expected volatility	15.8	%	17.8	%
Dividend yield	3.6	%	2.9	%

Schedule of information on stock option activity [Table Text Block]

	Options Outstanding (Thousands)		Weighted-Average Exercise Price Per Share	Weighted-Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value (Millions)
Balance as of May 28, 2017	29,834.4	$	40.47
Granted	2,816.7		55.52
Exercised	(3,207.2)		31.43
Forfeited or expired	(146.8)		58.69
Outstanding as of Feb. 25, 2018	29,297.1	$	42.82	4.36	$	343.4
Exercisable as of Feb. 25, 2018	20,297.2	$	36.08	2.74	$	343.4

Schedule of information on restricted stock and performance share unit activity [Table Text Block]

	Equity Classified			Liability Classified
	Share-Settled Units (Thousands)		Weighted-Average Grant-Date Fair Value	Share-Settled Units (Thousands)		Weighted-Average Grant-Date Fair Value
Non-vested as of May 28, 2017	4,491.2	$	56.08	123.3	$	56.93
Granted	1,473.6		55.37	42.9		55.49
Vested	(1,738.9)		50.53	(36.2)		49.42
Forfeited	(415.9)		62.63	(9.4)		58.91
Non-vested as of Feb. 25, 2018	3,810.0	$	57.62	120.6	$	58.31

The total grant date fair value of restricted stock unit awards that vested during the period follows:

		Nine-Month Period Ended
In Millions		Feb. 25, 2018		Feb. 26, 2017
Total grant date fair value	$	89.7	$	71.2