Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Aug. 27, 2017	Aug. 28, 2016
Net income
Pre-Tax Amount	$ 273.4	$ 408.0
Tax (Expense) Benefit	(120.1)	(218.0)
Net income	153.3	190.0
Unrealized derivative adjustments
Pre-Tax Amount	0.0	(8.0)
Tax (Expense) Benefit	0.0	3.1
After-Tax Amount	0.0	(4.9)
Unrealized gains on available-for-sale securities
Pre-Tax Amount	0.3	0.2
Tax (Expense) Benefit	(0.1)	(0.1)
After-Tax Amount	0.2	0.1
Unrealized currency translation gains (losses)
Pre-Tax Amount	32.6	(11.9)
Tax (Expense) Benefit	(0.1)	0.2
After-Tax Amount	32.5	(11.7)
Unrealized pension and post-employment benefit obligations
Pre-Tax Amount	0.1	(2.1)
Tax (Expense) Benefit	0.0	0.1
After-Tax Amount	0.1	(2.0)
Reclassification for pension and post-employment benefit obligations included in net income
Pre-Tax Amount	(0.1)	(0.9)
Tax (Expense) Benefit	0.0	0.3
After-Tax Amount	(0.1)	(0.6)
Comprehensive income
Pre-Tax Amount	306.3	385.3
Tax (Expense) Benefit	(120.3)	(214.4)
After-Tax Amount	186.0	170.9
Comprehensive income attributable to noncontrolling interests
Pre-Tax Amount	2.0	3.8
Tax (Expense) Benefit	(0.2)	(0.1)
After-Tax Amount	1.8	3.7
Comprehensive income attributable to Conagra Brands, Inc.
Pre-Tax Amount	304.3	381.5
Tax (Expense) Benefit	(120.1)	(214.3)
After-Tax Amount	$ 184.2	$ 167.2