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GOODWILL AND OTHER IDENTIFIABLE INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May 26, 2019 | May 27, 2018 | May 28, 2017
Indefinite-lived Intangible Assets [Line Items] |  |  |
Remaining weighted average life of amortizing intangible assets | 20 years |  |
Amortization expense recognized | $ 49.1 | $ 34.9 | $ 33.6
Estimated average amortization expense | 58.3 |  |
High expense in fiscal year 2020 | 59.9 |  |
Low expense in fiscal year 2024 | 54.2 |  |
Trademarks | Del Monte |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment charges for indefinite lived intangibles |  |  | 31.5
Held for sale | Del Monte |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Goodwill |  | 15.1 |
Other identifiable intangible assets |  | 1.7 |
International |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment charges for indefinite lived intangibles | 13.1 | 0.8 | 37.0
Impairment of goodwill |  |  | 198.9
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 charges for indefinite lived intangibles | $ 76.5 | $ 4.0 | 68.2
Grocery & Snacks | Trademarks | Chef Boyardee |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment charges for indefinite lived intangibles |  |  | 67.1
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] |  |  |
Impairment of goodwill |  |  | 139.2
Mexican Reporting Unit | International |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |
Impairment of goodwill |  |  | $ 59.7

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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