Discontinued Operations and Assets Held for Sale (Narrative) (Details) - USD ($) $ in Millions	May 26, 2019	May 27, 2018
Discontinued Operations and Disposal Groups [Abstract]
Assets held for sale	$ 0.0	$ 11.9

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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