SHARE-BASED PAYMENTS - Additional Information (Narrative) (Details) - Conagra Brands 2014 Stock Plan - shares	May 31, 2020	Sep. 19, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance (up to) (in shares)		40,300,000
Shares reserved for granting additional options, restricted stock units, cash-settled restricted stock units, performance shares, or other share-based awards (in shares)	40,600,000

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
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Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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