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GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Aug. 27, 2017 | May 28, 2017 | Nov. 27, 2016 | Aug. 28, 2016 | Aug. 30, 2015 | May 27, 2018 | May 28, 2017 | May 29, 2016
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment of goodwill |  |  |  |  |  |  | $ 198.9 |
Remaining weighted average life of amortizing intangible assets |  |  |  |  |  | 14 years |  |
Amortization expense recognized |  |  |  |  |  | $ 34.9 | 33.6 | $ 34.6
Estimated average amortization expense |  |  |  |  |  | 32.8 |  |
High expense in fiscal year 2018 |  |  |  |  |  | 33.3 |  |
Low expense in fiscal year 2022 |  |  |  |  |  | $ 30.9 |  |
Amortizing intangible asset |  |  |  |  | $ 92.8 |  |  |
Cash payment | $ 14.4 |  |  | $ 14.9 | $ 10.4 |  |  |
Period to make remaining payments |  |  |  |  |  | 4 years |  |
Trademarks | Del Monte |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  | 24.4 |  |  |  |
Held for sale | Del Monte |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  | $ 3.0 |  |
Other identifiable intangible assets |  |  |  |  |  | 9.2 |  |
International |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment of goodwill |  | $ 15.8 | $ 43.9 | $ 139.2 |  |  | 198.9 |
Impairment charges for indefinite lived intangibles |  |  |  |  |  | 0.8 |  |
Percent by which fair value of reporting unit exceeded the carrying value of its net assets |  |  |  | 5.00% |  |  |  |
International | Trademarks |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  |  |  | 0.8 | 37.0 |
International | Trademarks | Del Monte |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  |  |  |  | 7.1 |
International | Trademarks | Aylmer |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  |  |  |  | 5.5 |
Grocery & Snacks |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment of goodwill |  |  |  |  |  |  | 0.0 |
Impairment charges for indefinite lived intangibles |  |  |  |  |  | 4.0 |  |
Grocery & Snacks | Trademarks |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  |  |  | $ 4.0 | 68.2 | 50.1
Grocery & Snacks | Trademarks | Chef Boyardee |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  |  |  |  | 67.1 | $ 50.1
Grocery & Snacks | Trademarks | Fiddle Faddle |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Impairment charges for indefinite lived intangibles |  |  |  |  |  |  | $ 1.1 |
Canadian reporting unit | International |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Discount rates |  |  |  | 7.50% |  |  |  |
Terminal growth rates |  |  |  | 2.00% |  |  |  |
Mexican reporting unit | International |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |  |
Discount rates |  | 9.00% | 8.50% | 8.50% |  |  |  |
Terminal growth rates |  | 3.00% | 3.00% | 3.00% |  |  |  |

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