BUSINESS SEGMENTS AND RELATED INFORMATION - Segment Reporting Information by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Aug. 24, 2025	Aug. 25, 2024
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	$ 2,632.6	$ 2,794.9
Segment cost of goods sold	1,992.0	2,055.6
Selling, general and administrative expenses	335.6	335.4
Operating profit	347.4	401.6
Loss (gain) on divestitures	(42.4)	2.3
Other charges, net	3.3	(12.8)
Pension and postretirement non-service income	6.1	3.1
Interest expense, net	93.8	105.8
Equity method investment earnings	29.4	29.1
Income before income taxes	289.1	328.0
Operating Segments
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	2,632.6	2,794.9
Segment cost of goods sold	1,989.1	2,069.2
Selling, general and administrative expenses	242.9	242.4
Operating profit	400.6	483.3
Corporate, Non-Segment
BUSINESS SEGMENTS AND RELATED INFORMATION
General corporate expenses	92.3	92.2
Grocery & Snacks | Operating Segments
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	1,079.6	1,182.7
Segment cost of goods sold	752.9	828.2
Selling, general and administrative expenses	105.9	101.2
Operating profit	220.8	253.3
Refrigerated & Frozen | Operating Segments
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	1,076.2	1,086.4
Segment cost of goods sold	866.9	834.7
Selling, general and administrative expenses	94.9	92.6
Operating profit	114.4	159.1
International | Operating Segments
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	212.3	259.1
Segment cost of goods sold	151.4	192.8
Selling, general and administrative expenses	23.2	30.5
Operating profit	37.7	35.8
Food service | Operating Segments
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	264.5	266.7
Segment cost of goods sold	217.9	213.5
Selling, general and administrative expenses	18.9	18.1
Operating profit	27.7	35.1
Frozen
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	898.5	913.4
Other Shelf-stable
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	568.5	690.3
Refrigerated
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	177.7	173.0
Snacks
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	511.1	492.4
International
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	212.3	266.7
Food service
BUSINESS SEGMENTS AND RELATED INFORMATION
Net sales	$ 264.5	$ 259.1