Combined and Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Aug. 26, 2018	Aug. 27, 2017
Other comprehensive income (loss) Pre-Tax Amount:
Net income	$ 145.7	$ 132.4
Reclassification of pension and post-retirement benefits out of accumulated other comprehensive income (loss)	0.2
Unrealized currency translation gains (losses)	(4.3)	15.2
Comprehensive income (loss)	141.6	147.6
Less: Comprehensive income attributable to noncontrolling interests	3.6	4.9
Comprehensive income (loss) attributable to Lamb Weston Holdings, Inc.	138.0	142.7
Other comprehensive income (loss) Tax (Expense) Benefit:
Net income	(34.3)	(44.1)
Reclassification of pension and post-retirement benefits out of accumulated other comprehensive income (loss)	(0.1)
Comprehensive income (loss)	(34.4)	(44.1)
Comprehensive income (loss) attributable to Lamb Weston Holdings, Inc.	(34.4)	(44.1)
Other comprehensive income (loss) After Tax Amount:
Net income	111.4	88.3
Reclassification of pension and post-retirement benefits out of accumulated other comprehensive income (loss)	0.1
Unrealized currency translation gains (losses)	(4.3)	15.2
Comprehensive income (loss)	107.2	103.5
Less: Comprehensive income attributable to noncontrolling interests	3.6	4.9
Comprehensive income (loss) attributable to Lamb Weston Holdings, Inc.	$ 103.6	$ 98.6