Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Aug. 28, 2022	Aug. 29, 2021
Net income, pre-tax amount	$ (63.1)	$ 305.4
Net income, tax (expense) benefit	(14.4)	(69.7)
Net income, after-tax amount	(77.5)	235.7
Unrealized derivative adjustments, pre-tax amount	(2.3)	(2.5)
Unrealized derivative adjustments, tax (expense) benefit	0.6	0.6
Unrealized derivative adjustments, after-tax amount	(1.7)	(1.9)
Reclassification for derivative adjustments included in net income, pre-tax amount	(0.6)	(0.3)
Reclassification for derivative adjustments included in net income, tax (expense) benefit	0.2	0.1
Reclassification for derivative adjustments included in net income, after-tax amount	(0.4)	(0.2)
Unrealized pension and postretirement benefit obligation, pre-tax amount	(13.6)	(15.7)
Unrealized currency translation losses, tax (expense) benefit	0.0	0.0
Unrealized currency translation losses, after-tax amount	(13.6)	(15.7)
Unrealized pension and post-employment benefit obligations, pre-tax amount	2.2	2.1
Unrealized pension and post-employment benefit obligations, tax (expense) benefit	(0.1)	(0.2)
Unrealized pension and post-employment benefit obligations, after-tax amount	2.1	1.9
Reclassification for pension and post-employment benefit obligations included in net income (loss), pre-tax amount	(1.1)	(0.8)
Reclassification for pension and post-employment benefit obligations included in net income (loss), tax (expense) benefit	0.4	0.2
Reclassification for pension and post-employment benefit obligations included in net income (loss), after-tax amount	(0.7)	(0.6)
Comprehensive income (loss), pre-tax amount	(78.5)	288.2
Comprehensive income, tax (expense) benefit	(13.3)	(69.0)
Comprehensive income, after-tax amount	(91.8)	219.2
Comprehensive loss attributable to noncontrolling interests, pre-tax amount	(2.1)	(0.9)
Comprehensive loss attributable to noncontrolling interests, tax (expense) benefit	0.0	(0.1)
Comprehensive loss attributable to noncontrolling interests, after-tax amount	(2.1)	(1.0)
Comprehensive income attributable to Conagra Brands, Inc., pre-tax amount	(76.4)	289.1
Comprehensive income attributable to Conagra Brands, Inc., tax (expense) benefit	(13.3)	(68.9)
Comprehensive income attributable to Conagra Brands, Inc., after-tax amount	$ (89.7)	$ 220.2