Stockholders' Equity (Schedule of Reclassification Adjustments out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Feb. 28, 2016		Feb. 22, 2015		Feb. 28, 2016	Feb. 22, 2015
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Less interest, net		$ (83.1)		$ (23.3)		$ (162.8)	$ (168.3)
Earnings before income taxes		138.1		147.1		274.3	48.8
Tax benefit		(29.9)		(18.7)		(55.0)	29.5
Net earnings		105.8		133.8		235.4	604.2
Derivatives | Amount Reclassified from AOCI into Net Earnings
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Earnings before income taxes		0.0		(2.5)		(35.3)	(45.3)
Tax benefit		0.0		0.9		14.3	17.0
Net earnings		0.0		(1.6)		(21.0)	(28.3)
Derivatives | Equity | Amount Reclassified from AOCI into Net Earnings
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
General and administrative expenses	[1]	0.0		0.0		2.1	(0.9)
Derivatives | Interest rate related | Amount Reclassified from AOCI into Net Earnings
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Less interest, net		0.0	[2]	(2.5)	[2]	(37.4)	(44.4)
Benefit plan funding position | Amount Reclassified from AOCI into Net Earnings
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Earnings before income taxes		0.1		(1.6)		0.4	(3.2)
Tax benefit		0.0		0.6		(0.1)	1.4
Net earnings		0.1		(1.0)		0.3	(1.8)
Benefit plan funding position | Recognized net actuarial loss - pension/postretirement plans | Amount Reclassified from AOCI into Net Earnings
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount Reclassified from AOCI into Net Earnings, Benefit plan funding position	[3]	(0.7)		(0.6)		(2.1)	(1.9)
Benefit plan funding position | Recognized net actuarial gain (loss) - other plans | Amount Reclassified from AOCI into Net Earnings
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amount Reclassified from AOCI into Net Earnings, Benefit plan funding position		$ 0.8	[4]	$ (1.0)	[4]	$ 2.5	$ (1.3)

[1] Primarily included in restaurant labor costs and general and administrative expenses. See Note 9 for additional details.

[2] Included in interest, net, on our consolidated statements of earnings. Reclassifications for the nine months ended February 28, 2016 and February 22, 2015 primarily related to the acceleration of hedge loss amortization resulting from the pay down of the associated long-term debt.

[3] Included in the computation of net periodic benefit costs - pension and postretirement plans, which is a component of restaurant labor expenses and general and administrative expenses. See Note 8 for additional details.

[4] Included in the computation of net periodic benefit costs - other plans, which is a component of general and administrative expenses.