Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Aug. 27, 2023	Aug. 28, 2022
Net income, pre-tax amount	$ 418.2	$ (63.1)
Net income, tax (expense) benefit	(98.3)	(14.4)
Net income, after-tax amount	319.9	(77.5)
Unrealized derivative adjustments, pre-tax amount	4.1	(2.3)
Unrealized derivative adjustments, tax (expense) benefit	(1.0)	0.6
Unrealized derivative adjustments, after-tax amount	3.1	(1.7)
Reclassification for derivative adjustments included in net income, pre-tax amount	(2.0)	(0.6)
Reclassification for derivative adjustments included in net income, tax (expense) benefit	0.5	0.2
Reclassification for derivative adjustments included in net income, after-tax amount	(1.5)	(0.4)
Unrealized currency translation gains (losses), pre-tax amount	10.6	(13.6)
Unrealized currency translation gains (losses), tax (expense) benefit	0.0	0.0
Unrealized currency translation gains (losses), after-tax amount	10.6	(13.6)
Unrealized pension and post-employment benefit obligations, pre-tax amount	0.2	2.2
Unrealized pension and post-employment benefit obligations, tax	(0.1)	(0.1)
Unrealized pension and post-employment benefit obligations, after-tax amount	0.1	2.1
Reclassification for pension and post-employment benefit obligations included in net income (loss), pre-tax amount	(1.2)	(1.1)
Reclassification for pension and post-employment benefit obligations included in net income (loss), tax	0.3	0.4
Reclassification for pension and post-employment benefit obligations included in net income (loss), after-tax amount	(0.9)	(0.7)
Comprehensive income, pre-tax amount	429.9	(78.5)
Comprehensive income, tax (expense) benefit	(98.6)	(13.3)
Comprehensive income, after-tax amount	331.3	(91.8)
Comprehensive income (loss) attributable to noncontrolling interests	0.1	(2.1)
Comprehensive income (loss) attributable to noncontrolling interests, tax (expense) benefit	0.0	0.0
Comprehensive income (loss) attributable to noncontrolling interests, after-tax amount	0.1	(2.1)
Comprehensive income attributable to Conagra Brands, Inc., pre-tax amount	429.8	(76.4)
Comprehensive income attributable to Conagra Brands, Inc., tax (expense) benefit	(98.6)	(13.3)
Comprehensive income attributable to Conagra Brands, Inc., after-tax amount	$ 331.2	$ (89.7)