GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Aug. 25, 2019	May 31, 2020	May 26, 2019	May 27, 2018	Oct. 26, 2018
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill		$ 11,436,300,000	$ 11,435,400,000	$ 4,477,100,000
Fair value measurements discounted cash flow period		5 years
Remaining weighted average life of amortizing intangible assets		20 years
Amortization expense recognized		$ 59,800,000	49,100,000	34,900,000
Held for sale | DSD Snacks Business
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill		64,200,000
Other identifiable intangible assets		122,100,000
Minimum
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair value measurement inputs terminal growth rate	1.00%
Maximum
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair value measurement inputs terminal growth rate	2.00%
Domestic Reporting Units
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair value measurement inputs discount rate	7.00%
International Reporting Units | Minimum
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair value measurement inputs discount rate	8.00%
International Reporting Units | Maximum
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair value measurement inputs discount rate	11.00%
One International Reporting Unit
Indefinite Lived Intangible Assets By Major Class [Line Items]
Fair value measurement inputs terminal growth rate	3.00%
Three Reporting Units
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	$ 3,490,000,000
Grocery & Snacks
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill		4,744,800,000	4,741,300,000	2,582,500,000
Impairment charges for indefinite lived intangibles		46,400,000	76,500,000	4,000,000.0
Refrigerated & Frozen
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill		5,648,300,000	5,642,400,000	1,080,600,000
Impairment charges for indefinite lived intangibles		110,800,000
International
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill		290,500,000	299,000,000.0	242,900,000
Impairment charges for indefinite lived intangibles			13,100,000	800,000
Foodservice
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	752,700,000	752,700,000	$ 752,700,000	$ 571,100,000
Refrigerated & Frozen and Grocery & Snacks | Selling, general and administrative expenses | Brands and Trademarks
Indefinite Lived Intangible Assets By Major Class [Line Items]
Impairment charges for indefinite lived intangibles	19,300,000	146,200,000
Pinnacle Foods Inc. (Pinnacle)
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill					$ 7,026,000,000.0
Impairment of goodwill		$ 0
Pinnacle Foods Inc. (Pinnacle) | Grocery & Snacks
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	2,190,000,000
Pinnacle Foods Inc. (Pinnacle) | Refrigerated & Frozen
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	4,580,000,000
Pinnacle Foods Inc. (Pinnacle) | International
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	58,500,000
Pinnacle Foods Inc. (Pinnacle) | Foodservice
Indefinite Lived Intangible Assets By Major Class [Line Items]
Goodwill	$ 181,600,000