JOINT VENTURE INVESTMENTS - Unconsolidated Joint Ventures - Carrying Amounts (Details) - USD ($) $ in Millions	Aug. 28, 2022	May 29, 2022
Equity Method Investments
Equity method investments	$ 372.5	$ 257.4
Lamb-Weston Meijer v.o.f.
Equity Method Investments
Equity method investments	347.8	211.2
Lamb-Weston RDO Frozen
Equity Method Investments
Equity method investments	24.1	19.4
Lamb Weston Alimentos Modernos S.A.
Equity Method Investments
Equity method investments		26.1
Other
Equity Method Investments
Equity method investments	$ 0.6	$ 0.7

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(10))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599

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Balance Type:	debit
Period Type:	instant