Share Repurchases (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Feb. 24, 2019	Nov. 25, 2018	Aug. 26, 2018	Feb. 25, 2018	Nov. 26, 2017	Feb. 24, 2019	Feb. 25, 2018
Shares Repurchases [Abstract]
Shares of common stock purchased, shares	0.0			0.0		0.0	10.9
Shares purchased, aggregate purchase price	$ 0.4	$ 0.1	$ 0.2	$ 0.7	$ 0.2	$ 0.7	$ 601.2

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration