Combined and Consolidated Statements of Earnings - USD ($) $ in Millions	12 Months Ended
	May 27, 2018	May 28, 2017	May 29, 2016
Condensed Combined and Consolidated Statements of Earnings
Net sales	$ 3,423.7	$ 3,168.0	$ 2,993.8
Cost of sales	2,544.2	2,389.2	2,332.0
Gross profit	879.5	778.8	661.8
Selling, general and administrative expenses	299.4	260.5	288.5
Income from operations	580.1	518.3	373.3
Interest expense, net	108.8	61.2	5.9
Income before income taxes and equity method earnings	471.3	457.1	367.4
Income tax expense	121.2	170.2	144.5
Equity method investment earnings	83.6	53.3	71.7
Net income	433.7	340.2	294.6
Less: Income attributable to noncontrolling interests	16.9	13.3	9.3
Net income attributable to Lamb Weston Holdings, Inc.	$ 416.8	$ 326.9	$ 285.3
Earnings per share
Basic (in dollars per share)	$ 2.83	$ 2.22	$ 1.92
Diluted (in dollars per share)	2.82	2.22	1.92
Dividends declared per common share (in dollars per share)	$ 0.75750	$ 0.37500	$ 0