Represents the increase in investment in redeemable interest during the period.

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The most recent mark-to-market valuation amount of the equity interests owned by noncontrolling preferred unit holders in an entity included in the reporting entity's consolidated financial statements.

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Identification of whether the entity has been in compliance with any noncontrolling interest covenants during the period.

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The percentage points added to the floating preferred return rate to compute the variable rate on preferred distributions.

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The time period between scheduled adjustments of the preferred return rate.

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Description of redeemable interest terms.

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The percent ownership as of the reporting date of noncontrolling interests which the parent entity is required to redeem (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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Fair value of noncontrolling interests which are redeemable by the parent entity and classified as other equity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Purchases during the period (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Redeemable and Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Nov. 25, 2018	Feb. 24, 2019	Feb. 25, 2018	Aug. 26, 2018	May 27, 2018	Nov. 26, 2017	Aug. 27, 2017	May 28, 2017	Jul. 01, 2011
Noncontrolling Interest [Line Items]
Redeemable interest value		$ 548.9			$ 776.2
Noncontrolling interests		$ 319.0			351.3
Noncontrolling interests covenant compliancee		Our noncontrolling interests contain restrictive covenants. As of quarter end, we were in compliance with all of these covenants.
General Mills Cereals, LLC [Member] \| Preferred Class A [Member] \| Third Party Interest Holder [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest Holders Capital Account, General Mills Cereals, LLC		$ 251.5
Preferred return rate adjustment period		3 years
Preferred distributions variable rate		three-month LIBOR
Preferred distributions, basis spread on variable rate		1.425%
General Mills [Member] \| Yoplait SAS [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary		51.00%
General Mills [Member] \| Yoplait Marques SNC [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary		50.00%
General Mills [Member] \| Liberte Marques Sarl [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage in consolidated subsidiary		50.00%
Sodiaal International Redeemable Interest [Member]
Noncontrolling Interest [Line Items]
Redeemable interest value	$ 547.6	$ 548.9	$ 817.5	$ 771.6	$ 776.2	$ 793.4	$ 967.5	$ 910.9
Increase in investment in redeemable interest	55.7
Sodiaal International Redeemable Interest [Member] \| Yoplait SAS [Member]
Noncontrolling Interest [Line Items]
Redeemable interest value		$ 548.9							$ 904.4
Redeemable interest terms		Sodiaal has the ability to put all or a portion of its redeemable interest to us at fair value once per year, up to three times before December 2024.
Redeemable interest percentage		49.00%
Increase in investment in redeemable interest	$ 55.7
Sodiaal International Redeemable Interest [Member] \| Yoplait SAS Subsidiary [Member]
Noncontrolling Interest [Line Items]
Net purchases from related party		$ 150.1	$ 172.7
Sodiaal International Noncontrolling Interest [Member] \| Yoplait Marques SNC and Liberte Marques Sarl [Member]
Noncontrolling Interest [Line Items]
Noncontrolling interests									$ 281.4
Sodiaal International Noncontrolling Interest [Member] \| Yoplait Marques SNC [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage held by noncontrolling owners		50.00%
Sodiaal International Noncontrolling Interest [Member] \| Liberte Marques Sarl [Member]
Noncontrolling Interest [Line Items]
Ownership interest percentage held by noncontrolling owners		50.00%