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Note 2 - Restructuring Activities - Restructuring Plan Expenses (Details) - USD ($)
$ in Millions
 12 Months Ended 59 Months Ended
May 28, 2023
May 29, 2022
May 30, 2021
May 28, 2023
Restructuring and Related Cost, Expected Cost $ 155.7     $ 155.7
Restructuring and Related Cost, Incurred Cost       0.6
Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 12.7     12.7
Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 156.3     156.3
Restructuring and Related Cost, Incurred Cost 10.7 $ 29.4 $ 46.2 152.9
Balance 5.1      
Costs incurred and charged to expense 10.5      
Costs paid or otherwise settled (12.8)      
Changes in estimates (0.9)      
Balance 1.9 5.1   1.9
Pinnacle Integration Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 340.7     340.7
Restructuring and Related Cost, Incurred Cost 2.4 19.6 $ 31.7 295.7
Accelerated Depreciation Related To Cost Of Goods Sold [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 73.7     73.7
Restructuring and Related Cost, Incurred Cost       73.5
Accelerated Depreciation Related To Cost Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Other Cost of Goods Sold [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 11.5     11.5
Restructuring and Related Cost, Incurred Cost       11.5
Other Cost of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Other Cost of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 0.5      
Costs Of Goods Sold [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 85.2     85.2
Restructuring and Related Cost, Incurred Cost       85.0
Costs Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Costs Of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 1.2      
Severance And Related Costs [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 20.6     20.6
Restructuring and Related Cost, Incurred Cost       20.5
Balance 3.2      
Costs incurred and charged to expense 2.6      
Costs paid or otherwise settled (3.2)      
Changes in estimates (0.9)      
Balance 1.7 3.2   1.7
Severance And Related Costs [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 6.3     6.3
Restructuring and Related Cost, Incurred Cost       6.3
Severance And Related Costs [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 1.7      
Asset Impairment Net Of Gains On Disposal [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 22.9     22.9
Restructuring and Related Cost, Incurred Cost       22.9
Asset Impairment Net Of Gains On Disposal [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Asset Impairment Net Of Gains On Disposal [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 0.1      
Contract And Lease Termination Expenses [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 0.7     0.7
Restructuring and Related Cost, Incurred Cost       0.7
Balance 0.0      
Costs incurred and charged to expense 0.2      
Costs paid or otherwise settled (0.2)      
Changes in estimates 0.0      
Balance 0.0 0.0   0.0
Contract And Lease Termination Expenses [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 0.1     0.1
Restructuring and Related Cost, Incurred Cost       0.1
Contract And Lease Termination Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 0.2      
Consulting And Professional Fees [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Expected Cost 8.7     8.7
Restructuring and Related Cost, Incurred Cost       5.9
Balance 1.7      
Costs incurred and charged to expense 4.2      
Costs paid or otherwise settled (5.7)      
Changes in estimates 0.0      
Balance 0.2 1.7   0.2
Consulting And Professional Fees [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 5.7     5.7
Restructuring and Related Cost, Incurred Cost       5.2
Consulting And Professional Fees [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 4.2      
Other Net [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Incurred Cost       17.3
Balance 0.2      
Costs incurred and charged to expense 3.5      
Costs paid or otherwise settled (3.7)      
Changes in estimates 0.0      
Balance 0.0 $ 0.2   0.0
Other Net [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost       0.5
Other Net [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 3.3      
Other Selling, General and Administrative Expenses [Member]        
Restructuring and Related Cost, Expected Cost 70.5     70.5
Other Selling, General and Administrative Expenses [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 12.7     12.7
Other Selling, General and Administrative Expenses [Member] | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Incurred Cost       67.3
Other Selling, General and Administrative Expenses [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost       12.1
Other Selling, General and Administrative Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost 9.5      
Other Selling, General and Administrative Expenses [Member] | Grocery And Snacks [Member]        
Restructuring and Related Cost, Expected Cost 47.4     47.4
Other Selling, General and Administrative Expenses [Member] | Refrigerated And Frozen [Member]        
Restructuring and Related Cost, Expected Cost 8.7     8.7
Other Selling, General and Administrative Expenses [Member] | International [Member]        
Restructuring and Related Cost, Expected Cost 1.4     1.4
Other Selling, General and Administrative Expenses [Member] | Foodservice [Member]        
Restructuring and Related Cost, Expected Cost 0.3     0.3
Cost Of Goods Sold And Selling General And Administrative Expenses Member | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Incurred Cost       152.3
Cost Of Goods Sold And Selling General And Administrative Expenses Member | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Incurred Cost       12.1
Pension And Postretirement Nonservice Cost Income Member | Conagra Restructuring Plan [Member]        
Restructuring and Related Cost, Incurred Cost       0.6
Grocery And Snacks [Member]        
Restructuring and Related Cost, Expected Cost 89.3     89.3
Restructuring and Related Cost, Incurred Cost 0.5      
Grocery And Snacks [Member] | Accelerated Depreciation Related To Cost Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 33.2     33.2
Restructuring and Related Cost, Incurred Cost 0.0     33.2
Grocery And Snacks [Member] | Other Cost of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 8.7     8.7
Restructuring and Related Cost, Incurred Cost       8.7
Grocery And Snacks [Member] | Other Cost of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
Grocery And Snacks [Member] | Costs Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 41.9     41.9
Restructuring and Related Cost, Incurred Cost       41.9
Grocery And Snacks [Member] | Costs Of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
Grocery And Snacks [Member] | Severance And Related Costs [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 11.5     11.5
Restructuring and Related Cost, Incurred Cost       11.4
Grocery And Snacks [Member] | Severance And Related Costs [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost (0.2)      
Grocery And Snacks [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 21.9     21.9
Restructuring and Related Cost, Incurred Cost       21.9
Grocery And Snacks [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
Grocery And Snacks [Member] | Contract And Lease Termination Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.5     0.5
Restructuring and Related Cost, Incurred Cost       0.5
Grocery And Snacks [Member] | Contract And Lease Termination Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.1      
Grocery And Snacks [Member] | Consulting And Professional Fees [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.6     0.6
Restructuring and Related Cost, Incurred Cost       0.3
Grocery And Snacks [Member] | Consulting And Professional Fees [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.3      
Grocery And Snacks [Member] | Other Net [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       12.9
Grocery And Snacks [Member] | Other Net [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.3      
Grocery And Snacks [Member] | Other Selling, General and Administrative Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       47.0
Grocery And Snacks [Member] | Other Selling, General and Administrative Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.5      
Grocery And Snacks [Member] | Cost Of Goods Sold And Selling General And Administrative Expenses Member | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       88.9
Refrigerated And Frozen [Member]        
Restructuring and Related Cost, Expected Cost 52.0     52.0
Restructuring and Related Cost, Incurred Cost 4.6      
Refrigerated And Frozen [Member] | Accelerated Depreciation Related To Cost Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 40.5     40.5
Restructuring and Related Cost, Incurred Cost 0.7     40.3
Refrigerated And Frozen [Member] | Other Cost of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 2.8     2.8
Restructuring and Related Cost, Incurred Cost       2.8
Refrigerated And Frozen [Member] | Other Cost of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.5      
Refrigerated And Frozen [Member] | Costs Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 43.3     43.3
Restructuring and Related Cost, Incurred Cost       43.1
Refrigerated And Frozen [Member] | Costs Of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 1.2      
Refrigerated And Frozen [Member] | Severance And Related Costs [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 1.2     1.2
Restructuring and Related Cost, Incurred Cost       1.2
Refrigerated And Frozen [Member] | Severance And Related Costs [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
Refrigerated And Frozen [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.9     0.9
Restructuring and Related Cost, Incurred Cost       0.9
Refrigerated And Frozen [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.1      
Refrigerated And Frozen [Member] | Contract And Lease Termination Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.1     0.1
Restructuring and Related Cost, Incurred Cost       0.1
Refrigerated And Frozen [Member] | Contract And Lease Termination Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.1      
Refrigerated And Frozen [Member] | Consulting And Professional Fees [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 2.4     2.4
Restructuring and Related Cost, Incurred Cost       0.4
Refrigerated And Frozen [Member] | Consulting And Professional Fees [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.4      
Refrigerated And Frozen [Member] | Other Net [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       3.9
Refrigerated And Frozen [Member] | Other Net [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 2.8      
Refrigerated And Frozen [Member] | Other Net [Member] | Refrigerated And Frozen [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 4.1     4.1
Refrigerated And Frozen [Member] | Other Selling, General and Administrative Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       6.5
Refrigerated And Frozen [Member] | Other Selling, General and Administrative Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 3.4      
Refrigerated And Frozen [Member] | Cost Of Goods Sold And Selling General And Administrative Expenses Member | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       49.6
International [Member]        
Restructuring and Related Cost, Expected Cost 1.4     1.4
Restructuring and Related Cost, Incurred Cost 5.6      
International [Member] | Accelerated Depreciation Related To Cost Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost 0.0     0.0
International [Member] | Other Cost of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
International [Member] | Other Cost of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
International [Member] | Costs Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
International [Member] | Costs Of Goods Sold [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
International [Member] | Severance And Related Costs [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 1.3     1.3
Restructuring and Related Cost, Incurred Cost       1.3
International [Member] | Severance And Related Costs [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 1.9      
International [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.1     0.1
Restructuring and Related Cost, Incurred Cost       0.1
International [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
International [Member] | Contract And Lease Termination Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
International [Member] | Contract And Lease Termination Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.0      
International [Member] | Consulting And Professional Fees [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
International [Member] | Consulting And Professional Fees [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 3.5      
International [Member] | Other Net [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
International [Member] | Other Net [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 0.2      
International [Member] | Other Selling, General and Administrative Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       1.4
International [Member] | Other Selling, General and Administrative Expenses [Member] | Pinnacle Integration Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost 5.6      
International [Member] | Cost Of Goods Sold And Selling General And Administrative Expenses Member | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       1.4
Foodservice [Member]        
Restructuring and Related Cost, Expected Cost 0.3     0.3
Restructuring and Related Cost, Incurred Cost 10.7      
Foodservice [Member] | Accelerated Depreciation Related To Cost Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost 0.7     0.0
Foodservice [Member] | Other Cost of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Foodservice [Member] | Costs Of Goods Sold [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Foodservice [Member] | Severance And Related Costs [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.3     0.3
Restructuring and Related Cost, Incurred Cost       0.3
Foodservice [Member] | Asset Impairment Net Of Gains On Disposal [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Foodservice [Member] | Contract And Lease Termination Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Foodservice [Member] | Consulting And Professional Fees [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 0.0     0.0
Restructuring and Related Cost, Incurred Cost       0.0
Foodservice [Member] | Other Net [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       0.0
Foodservice [Member] | Other Selling, General and Administrative Expenses [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       0.3
Foodservice [Member] | Cost Of Goods Sold And Selling General And Administrative Expenses Member | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Incurred Cost       0.3
Conagra Restructuring Plan [Member] | Other Net [Member] | Grocery And Snacks [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost 12.9     12.9
Other Net [Member]        
Restructuring and Related Cost, Expected Cost 17.6     17.6
Other Net [Member] | Conagra Restructuring Plan [Member] | Corporate, Non-Segment [Member]        
Restructuring and Related Cost, Expected Cost 0.6     0.6
Other Net [Member] | Foodservice [Member] | Conagra Restructuring Plan [Member] | Operating Segments [Member]        
Restructuring and Related Cost, Expected Cost $ 0.0     $ 0.0