Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 27, 2022	Feb. 28, 2021	Feb. 27, 2022	Feb. 28, 2021
Net income
Pre-Tax Amount	$ 328.8	$ 383.3	$ 994.3	$ 1,260.0
Tax (Expense) Benefit	(109.9)	(101.6)	(263.8)	(269.0)
Net income	218.9	281.7	730.5	991.0
Unrealized derivative adjustments
Pre-Tax Amount	2.1	0.6	1.8	1.1
Tax (Expense) Benefit	(0.6)	(0.1)	(0.5)	(0.3)
After-Tax Amount	1.5	0.5	1.3	0.8
Reclassification for derivative adjustments included in net income
Pre-Tax Amount	(0.4)	(0.8)	(1.0)	(2.9)
Tax (Expense) Benefit	0.2	0.2	0.3	0.7
After-Tax Amount	(0.2)	(0.6)	(0.7)	(2.2)
Unrealized currency translation gains (losses)
Pre-Tax Amount	10.7	0.7	(22.7)	29.5
Tax (Expense) Benefit	0.0	(0.6)	0.0	(1.2)
After-Tax Amount	10.7	0.1	(22.7)	28.3
Unrealized pension and post-employment benefit obligations
Pre-Tax Amount			2.1	0.4
Tax (Expense) Benefit			(0.2)	(0.1)
After-Tax Amount			1.9	0.3
Reclassification for pension and post-employment benefit obligations included in net income
Pre-Tax Amount	(0.9)	(0.8)	(2.6)	(2.4)
Tax (Expense) Benefit	0.3	0.2	0.8	0.6
After-Tax Amount	(0.6)	(0.6)	(1.8)	(1.8)
Comprehensive income
Pre-Tax Amount	340.3	383.0	971.9	1,285.7
Tax (Expense) Benefit	(110.0)	(101.9)	(263.4)	(269.3)
After-Tax Amount	230.3	281.1	708.5	1,016.4
Comprehensive income (loss) attributable to noncontrolling interests
Pre-Tax Amount	0.6	0.5	(1.3)	3.8
Tax (Expense) Benefit	(0.2)	(0.2)	(0.4)	(0.6)
After-Tax Amount	0.4	0.3	(1.7)	3.2
Comprehensive income attributable to Conagra Brands, Inc.
Pre-Tax Amount	339.7	382.5	973.2	1,281.9
Tax (Expense) Benefit	(109.8)	(101.7)	(263.0)	(268.7)
After-Tax Amount	$ 229.9	$ 280.8	$ 710.2	$ 1,013.2