Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 25, 2024	Feb. 26, 2023	Feb. 25, 2024	Feb. 26, 2023
Net income, pre-tax amount	$ 404.7	$ 442.3	$ 1,212.0	$ 883.9
Net income, tax (expense) benefit	(95.9)	(100.1)	(297.1)	(237.0)
Net income, after-tax amount	308.8	342.2	914.9	646.9
Unrealized derivative adjustments, pre-tax amount	(3.3)	(3.5)	4.0	3.9
Unrealized derivative adjustments, tax (expense) benefit	0.8	0.8	(1.0)	(1.0)
Unrealized derivative adjustments, after-tax amount	(2.5)	(2.7)	3.0	2.9
Reclassification for derivative adjustments included in net income, pre-tax amount	(2.1)	(1.6)	(6.2)	(3.2)
Reclassification for derivative adjustments included in net income, tax (expense) benefit	0.5	0.4	1.5	0.9
Reclassification for derivative adjustments included in net income, after-tax amount	(1.6)	(1.2)	(4.7)	(2.3)
Unrealized currency translation gains, pre-tax amount	4.8	4.3	9.1	(17.5)
Unrealized currency translation gains, tax (expense) benefit	0.0	0.0	0.0	0.0
Unrealized currency translation gains, after-tax amount	4.8	4.3	9.1	(17.5)
Unrealized pension and postretirement benefit obligations, pre-tax amount	(7.3)	0.0	(7.2)	1.6
Unrealized pension and postretirement benefit obligations, tax (expense) benefit	1.8	0.0	1.7	0.0
Unrealized pension and postretirement benefit obligations, after-tax amount	(5.5)	0.0	(5.5)	1.6
Reclassification for pension and postretirement benefit obligations included in net income, pre-tax amount	(0.1)	(1.1)	(2.5)	(3.4)
Reclassification for pension and postretirement benefit obligations included in net income, tax (expense) benefit	0.0	0.3	0.6	1.0
Reclassification for pension and postretirement benefit obligations included in net income, after-tax amount	(0.1)	(0.8)	(1.9)	(2.4)
Comprehensive income, pre-tax amount	396.7	440.4	1,209.2	865.3
Comprehensive income, tax (expense) benefit	(92.8)	(98.6)	(294.3)	(236.1)
Comprehensive income, after-tax amount	303.9	341.8	914.9	629.2
Comprehensive income (loss) attributable to noncontrolling interests, pre-tax amount	0.5	(0.8)	0.0	(4.3)
Comprehensive income (loss) attributable to noncontrolling interests, tax (expense) benefit	(0.1)	(0.2)	(0.2)	(0.3)
Comprehensive income (loss) attributable to noncontrolling interests, after-tax amount	0.4	(1.0)	(0.2)	(4.6)
Comprehensive income attributable to Conagra Brands, Inc.	396.2	441.2	1,209.2	869.6
Comprehensive income attributable to Conagra Brands, Inc.	(92.7)	(98.4)	(294.1)	(235.8)
Comprehensive income attributable to Conagra Brands, Inc.	$ 303.5	$ 342.8	$ 915.1	$ 633.8