DERIVATIVE FINANCIAL INSTRUMENTS - Notional Values (Details) - USD ($) $ in Millions	Aug. 27, 2017	May 28, 2017
Open commodity purchase contracts
Derivative Financial Instruments
Notional amount	$ 49.2	$ 56.0
Open commodity sale contracts
Derivative Financial Instruments
Notional amount	$ 51.5	$ 88.6

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant