GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	May 25, 2014	May 25, 2014	May 26, 2013	May 27, 2012
Indefinite-lived Intangible Assets [Line Items]
Fair Value Inputs, Discount Rate		8.30%
Fair Value Inputs, Long-term Revenue Growth Rate		3.00%
Goodwill, Impairment Loss	$ 602.2	$ 602.2
Goodwill	7,836.5	7,836.5	8,426.7	4,008.8
Noncurrent assets held for sale	10.9	10.9	144.1
Long-lived asset impairment charge		25.4	0	0
Weighted average life in years of amortizing intangible assets		23 years
Recognized amortization expense		111.4	55.7	20.8
Amortization expense year one	108.5	108.5
Amortization expense year two	108.5	108.5
Amortization expense year three	108.5	108.5
Amortization expense year four	108.5	108.5
Amortization expense year five	108.5	108.5
Maximum
Indefinite-lived Intangible Assets [Line Items]
Amortization expense year one	109.2	109.2
Minimum
Indefinite-lived Intangible Assets [Line Items]
Amortization expense year five	107.0	107.0
Private Brands
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss		602.2
Goodwill	3,214.6	3,214.6	3,793.2	321.7
Impairment of Intangible Assets (Excluding Goodwill)		3.2
Consumer Foods
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss		0
Goodwill	3,748.5	3,748.5	3,760.5	3,162.1
Impairment of Intangible Assets (Excluding Goodwill)		72.5
Corporate, Non-Segment [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		3.2
Goodwill | Private Brands
Indefinite-lived Intangible Assets [Line Items]
Noncurrent assets held for sale	17.5	17.5
Long-lived asset impairment charge		17.5
Other Intangible Assets | Private Brands
Indefinite-lived Intangible Assets [Line Items]
Noncurrent assets held for sale	14.4	14.4
Long-lived asset impairment charge		7.9
Cereal
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	154.6
Goodwill	464.4	464.4
Pasta
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	94.2
Goodwill	752.1	752.1
Condiments
Indefinite-lived Intangible Assets [Line Items]
Goodwill	136.1	136.1
Snacks
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	231.6
Goodwill	816.2	816.2
Bars and coordinated
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	66.4
Goodwill	328.7	328.7
Retail Bakery
Indefinite-lived Intangible Assets [Line Items]
Goodwill, Impairment Loss	55.4
Goodwill	$ 717.1	$ 717.1