Risk Management Activities (Tables)

9 Months Ended

Feb. 26, 2017

Risk Management Activities [Abstract]

Schedule of unallocated corporate items [Table Text Block]

	Quarter Ended				Nine-MonthPeriod Ended
In Millions		Feb. 26, 2017		Feb. 28, 2016		Feb. 26, 2017		Feb. 28, 2016
Net gain (loss) on mark-to-market valuation of certain commodity positions	$	-	$	(42.7)	$	(15.9)	$	(96.7)
Net loss on commodity positions reclassified from unallocated corporate items to segment operating profit		4.0		39.8		27.7		101.9
Net mark-to-market revaluation of certain grain inventories		4.2		(4.4)		8.9		(2.1)
Net mark-to-market valuation of certain commodity positions recognized in unallocated corporate items	$	8.2	$	(7.3)	$	20.7	$	3.1