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RESTRUCTURING ACTIVITIES - Schedule of Pre-Tax Expenses in Association with the Restructuring Plan (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 37 Months Ended | 39 Months Ended
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Feb. 27, 2022 | Feb. 28, 2021 | Feb. 27, 2022 | Feb. 28, 2021 | Feb. 27, 2022 | Feb. 27, 2022
Pinnacle Integration Restructuring Plan |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | $ 341.0 |  | $ 341.0 |  | $ 341.0 | $ 341.0
Recognized pre-tax expenses | 0.2 | $ 5.4 | 13.3 | $ 24.2 |  | 287.0
Pinnacle Integration Restructuring Plan | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 50.0 |  | 50.0 |  | 50.0 | 50.0
Recognized pre-tax expenses |  |  | 0.3 |  |  | 8.8
Pinnacle Integration Restructuring Plan | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 22.9 |  | 22.9 |  | 22.9 | 22.9
Recognized pre-tax expenses | (4.3) |  | (1.3) |  |  | 14.7
Pinnacle Integration Restructuring Plan | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 4.1 |  | 4.1 |  | 4.1 | 4.1
Recognized pre-tax expenses |  |  |  |  |  | 4.1
Pinnacle Integration Restructuring Plan | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 264.0 |  | 264.0 |  | 264.0 | 264.0
Recognized pre-tax expenses | 4.5 |  | 14.3 |  |  | 259.4
Pinnacle Integration Restructuring Plan | Accelerated depreciation |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 9.8 |  | 9.8 |  | 9.8 | 9.8
Recognized pre-tax expenses |  |  |  |  |  | 5.2
Pinnacle Integration Restructuring Plan | Accelerated depreciation | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 5.2 |  | 5.2 |  | 5.2 | 5.2
Recognized pre-tax expenses |  |  |  |  |  | 0.6
Pinnacle Integration Restructuring Plan | Accelerated depreciation | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 4.6 |  | 4.6 |  | 4.6 | 4.6
Recognized pre-tax expenses |  |  |  |  |  | 4.6
Pinnacle Integration Restructuring Plan | Other cost of goods sold |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 11.5 |  | 11.5 |  | 11.5 | 11.5
Recognized pre-tax expenses | 0.4 |  | 1.9 |  |  | 7.8
Pinnacle Integration Restructuring Plan | Other cost of goods sold | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 3.8 |  | 3.8 |  | 3.8 | 3.8
Recognized pre-tax expenses |  |  |  |  |  | 2.3
Pinnacle Integration Restructuring Plan | Other cost of goods sold | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 7.0 |  | 7.0 |  | 7.0 | 7.0
Recognized pre-tax expenses | 0.4 |  | 1.9 |  |  | 4.8
Pinnacle Integration Restructuring Plan | Other cost of goods sold | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.7 |  | 0.7 |  | 0.7 | 0.7
Recognized pre-tax expenses |  |  |  |  |  | 0.7
Pinnacle Integration Restructuring Plan | Total cost of goods sold |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 21.3 |  | 21.3 |  | 21.3 | 21.3
Recognized pre-tax expenses | 0.4 |  | 1.9 |  |  | 13.0
Pinnacle Integration Restructuring Plan | Total cost of goods sold | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 9.0 |  | 9.0 |  | 9.0 | 9.0
Recognized pre-tax expenses |  |  |  |  |  | 2.9
Pinnacle Integration Restructuring Plan | Total cost of goods sold | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 11.6 |  | 11.6 |  | 11.6 | 11.6
Recognized pre-tax expenses | 0.4 |  | 1.9 |  |  | 9.4
Pinnacle Integration Restructuring Plan | Total cost of goods sold | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.7 |  | 0.7 |  | 0.7 | 0.7
Recognized pre-tax expenses |  |  |  |  |  | 0.7
Pinnacle Integration Restructuring Plan | Severance and related costs |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 118.0 |  | 118.0 |  | 118.0 | 118.0
Recognized pre-tax expenses | 0.5 |  | 0.7 |  |  | 118.0
Pinnacle Integration Restructuring Plan | Severance and related costs | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 4.3 |  | 4.3 |  | 4.3 | 4.3
Recognized pre-tax expenses | 0.5 |  | 0.9 |  |  | 4.3
Pinnacle Integration Restructuring Plan | Severance and related costs | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 1.5 |  | 1.5 |  | 1.5 | 1.5
Recognized pre-tax expenses |  |  |  |  |  | 1.5
Pinnacle Integration Restructuring Plan | Severance and related costs | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 112.2 |  | 112.2 |  | 112.2 | 112.2
Recognized pre-tax expenses |  |  | (0.2) |  |  | 112.2
Pinnacle Integration Restructuring Plan | Asset impairment (net of gains on disposal) |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 28.9 |  | 28.9 |  | 28.9 | 28.9
Recognized pre-tax expenses |  |  |  |  |  | 1.4
Pinnacle Integration Restructuring Plan | Asset impairment (net of gains on disposal) | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 27.8 |  | 27.8 |  | 27.8 | 27.8
Recognized pre-tax expenses |  |  |  |  |  | 0.3
Pinnacle Integration Restructuring Plan | Asset impairment (net of gains on disposal) | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | (1.4) |  | (1.4) |  | (1.4) | (1.4)
Recognized pre-tax expenses |  |  |  |  |  | (1.4)
Pinnacle Integration Restructuring Plan | Asset impairment (net of gains on disposal) | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 2.5 |  | 2.5 |  | 2.5 | 2.5
Recognized pre-tax expenses |  |  |  |  |  | 2.5
Pinnacle Integration Restructuring Plan | Accelerated depreciation |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 7.4 |  | 7.4 |  | 7.4 | 7.4
Recognized pre-tax expenses |  |  |  |  |  | 7.4
Pinnacle Integration Restructuring Plan | Accelerated depreciation | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 7.4 |  | 7.4 |  | 7.4 | 7.4
Recognized pre-tax expenses |  |  |  |  |  | 7.4
Pinnacle Integration Restructuring Plan | Contract/lease termination |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 26.4 |  | 26.4 |  | 26.4 | 26.4
Recognized pre-tax expenses | (0.7) |  | (0.5) |  |  | 18.0
Pinnacle Integration Restructuring Plan | Contract/lease termination | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 6.5 |  | 6.5 |  | 6.5 | 6.5
Recognized pre-tax expenses |  |  |  |  |  | 1.8
Pinnacle Integration Restructuring Plan | Contract/lease termination | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 3.7 |  | 3.7 |  | 3.7 | 3.7
Pinnacle Integration Restructuring Plan | Contract/lease termination | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.8 |  | 0.8 |  | 0.8 | 0.8
Recognized pre-tax expenses |  |  |  |  |  | 0.8
Pinnacle Integration Restructuring Plan | Contract/lease termination | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 15.4 |  | 15.4 |  | 15.4 | 15.4
Recognized pre-tax expenses | (0.7) |  | (0.5) |  |  | 15.4
Pinnacle Integration Restructuring Plan | Consulting/professional fees |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 107.6 |  | 107.6 |  | 107.6 | 107.6
Recognized pre-tax expenses | 4.9 |  | 13.5 |  |  | 104.5
Pinnacle Integration Restructuring Plan | Consulting/professional fees | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 1.0 |  | 1.0 |  | 1.0 | 1.0
Recognized pre-tax expenses |  |  | 0.2 |  |  | 0.9
Pinnacle Integration Restructuring Plan | Consulting/professional fees | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.8 |  | 0.8 |  | 0.8 | 0.8
Recognized pre-tax expenses |  |  |  |  |  | 0.8
Pinnacle Integration Restructuring Plan | Consulting/professional fees | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 105.8 |  | 105.8 |  | 105.8 | 105.8
Recognized pre-tax expenses | 4.9 |  | 13.3 |  |  | 102.8
Pinnacle Integration Restructuring Plan | Other selling, general and administrative expenses |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 31.4 |  | 31.4 |  | 31.4 | 31.4
Recognized pre-tax expenses | 0.6 |  | 3.2 |  |  | 24.7
Pinnacle Integration Restructuring Plan | Other selling, general and administrative expenses | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 5.7 |  | 5.7 |  | 5.7 | 5.7
Recognized pre-tax expenses |  |  | 0.1 |  |  | 2.9
Pinnacle Integration Restructuring Plan | Other selling, general and administrative expenses | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 4.7 |  | 4.7 |  | 4.7 | 4.7
Recognized pre-tax expenses | 0.3 |  | 1.3 |  |  | 2.4
Pinnacle Integration Restructuring Plan | Other selling, general and administrative expenses | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.3 |  | 0.3 |  | 0.3 | 0.3
Recognized pre-tax expenses |  |  |  |  |  | 0.3
Pinnacle Integration Restructuring Plan | Other selling, general and administrative expenses | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 20.7 |  | 20.7 |  | 20.7 | 20.7
Recognized pre-tax expenses | 0.3 |  | 1.8 |  |  | 19.1
Pinnacle Integration Restructuring Plan | Total selling, general and administrative expenses |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 319.7 |  | 319.7 |  | 319.7 | 319.7
Recognized pre-tax expenses | (0.2) |  | 11.4 |  |  | 274.0
Pinnacle Integration Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 41.0 |  | 41.0 |  | 41.0 | 41.0
Recognized pre-tax expenses |  |  | 0.3 |  |  | 5.9
Pinnacle Integration Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 11.3 |  | 11.3 |  | 11.3 | 11.3
Recognized pre-tax expenses | (4.7) |  | (3.2) |  |  | 5.3
Pinnacle Integration Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 3.4 |  | 3.4 |  | 3.4 | 3.4
Recognized pre-tax expenses |  |  |  |  |  | 3.4
Pinnacle Integration Restructuring Plan | Total selling, general and administrative expenses | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 264.0 |  | 264.0 |  | 264.0 | 264.0
Recognized pre-tax expenses | 4.5 |  | 14.3 |  |  | 259.4
Pinnacle Integration Restructuring Plan | Asset gains on disposal (net of impairment) |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Recognized pre-tax expenses | (5.5) |  | (5.5) |  |  |
Pinnacle Integration Restructuring Plan | Asset gains on disposal (net of impairment) | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Recognized pre-tax expenses | (5.5) |  | (5.4) |  |  |
Pinnacle Integration Restructuring Plan | Asset gains on disposal (net of impairment) | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Recognized pre-tax expenses |  |  | (0.1) |  |  |
Conagra Restructuring Plan |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 148.4 |  | 148.4 |  | 148.4 | 148.4
Recognized pre-tax expenses | 10.5 | $ 10.0 | 25.6 | $ 37.8 | 138.4 |
Conagra Restructuring Plan | Accelerated depreciation |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 73.1 |  | 73.1 |  | 73.1 | 73.1
Recognized pre-tax expenses | 2.6 |  | 13.6 |  | 72.3 |
Conagra Restructuring Plan | Accelerated depreciation | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 33.2 |  | 33.2 |  | 33.2 | 33.2
Recognized pre-tax expenses |  |  | 1.2 |  | 33.2 |
Conagra Restructuring Plan | Accelerated depreciation | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 39.9 |  | 39.9 |  | 39.9 | 39.9
Recognized pre-tax expenses | 2.6 |  | 12.4 |  | 39.1 |
Conagra Restructuring Plan | Other cost of goods sold |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 12.8 |  | 12.8 |  | 12.8 | 12.8
Recognized pre-tax expenses | 2.6 |  | 6.4 |  | 11.4 |
Conagra Restructuring Plan | Other cost of goods sold | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 8.8 |  | 8.8 |  | 8.8 | 8.8
Recognized pre-tax expenses | 0.3 |  | 4.0 |  | 8.8 |
Conagra Restructuring Plan | Other cost of goods sold | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 4.0 |  | 4.0 |  | 4.0 | 4.0
Recognized pre-tax expenses | 2.3 |  | 2.4 |  | 2.6 |
Conagra Restructuring Plan | Total cost of goods sold |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 85.9 |  | 85.9 |  | 85.9 | 85.9
Recognized pre-tax expenses | 5.2 |  | 20.0 |  | 83.7 |
Conagra Restructuring Plan | Total cost of goods sold | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 42.0 |  | 42.0 |  | 42.0 | 42.0
Recognized pre-tax expenses | 0.3 |  | 5.2 |  | 42.0 |
Conagra Restructuring Plan | Total cost of goods sold | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 43.9 |  | 43.9 |  | 43.9 | 43.9
Recognized pre-tax expenses | 4.9 |  | 14.8 |  | 41.7 |
Conagra Restructuring Plan | Severance and related costs |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 19.3 |  | 19.3 |  | 19.3 | 19.3
Recognized pre-tax expenses | 2.7 |  | 3.2 |  | 18.6 |
Conagra Restructuring Plan | Severance and related costs | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 11.6 |  | 11.6 |  | 11.6 | 11.6
Recognized pre-tax expenses | (0.1) |  | 1.2 |  | 11.6 |
Conagra Restructuring Plan | Severance and related costs | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 1.2 |  | 1.2 |  | 1.2 | 1.2
Recognized pre-tax expenses | 0.4 |  | (0.8) |  | 1.0 |
Conagra Restructuring Plan | Severance and related costs | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 1.3 |  | 1.3 |  | 1.3 | 1.3
Recognized pre-tax expenses | 0.2 |  | 0.2 |  | 1.3 |
Conagra Restructuring Plan | Severance and related costs | Reporting segments | Foodservice |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.3 |  | 0.3 |  | 0.3 | 0.3
Recognized pre-tax expenses |  |  | 0.3 |  | 0.3 |
Conagra Restructuring Plan | Severance and related costs | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 4.9 |  | 4.9 |  | 4.9 | 4.9
Recognized pre-tax expenses | 2.2 |  | 2.3 |  | 4.4 |
Conagra Restructuring Plan | Asset impairment (net of gains on disposal) |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 24.0 |  | 24.0 |  | 24.0 | 24.0
Recognized pre-tax expenses | 0.2 |  | (3.5) |  | 24.0 |
Conagra Restructuring Plan | Asset impairment (net of gains on disposal) | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 23.5 |  | 23.5 |  | 23.5 | 23.5
Recognized pre-tax expenses | 0.2 |  | (3.6) |  | 23.5 |
Conagra Restructuring Plan | Asset impairment (net of gains on disposal) | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.4 |  | 0.4 |  | 0.4 | 0.4
Recognized pre-tax expenses |  |  | 0.1 |  | 0.4 |
Conagra Restructuring Plan | Asset impairment (net of gains on disposal) | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.1 |  | 0.1 |  | 0.1 | 0.1
Recognized pre-tax expenses |  |  |  |  | 0.1 |
Conagra Restructuring Plan | Contract/lease termination |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 3.1 |  | 3.1 |  | 3.1 | 3.1
Recognized pre-tax expenses |  |  | 0.1 |  | 0.2 |
Conagra Restructuring Plan | Contract/lease termination | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.4 |  | 0.4 |  | 0.4 | 0.4
Recognized pre-tax expenses |  |  | 0.1 |  | 0.1 |
Conagra Restructuring Plan | Contract/lease termination | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 2.6 |  | 2.6 |  | 2.6 | 2.6
Conagra Restructuring Plan | Contract/lease termination | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.1 |  | 0.1 |  | 0.1 | 0.1
Recognized pre-tax expenses |  |  |  |  | 0.1 |
Conagra Restructuring Plan | Consulting/professional fees |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.9 |  | 0.9 |  | 0.9 | 0.9
Conagra Restructuring Plan | Consulting/professional fees | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.9 |  | 0.9 |  | 0.9 | 0.9
Conagra Restructuring Plan | Other selling, general and administrative expenses |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 14.6 |  | 14.6 |  | 14.6 | 14.6
Recognized pre-tax expenses | 2.4 |  | 5.8 |  | 11.3 |
Conagra Restructuring Plan | Other selling, general and administrative expenses | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 11.6 |  | 11.6 |  | 11.6 | 11.6
Recognized pre-tax expenses | 2.2 |  | 5.5 |  | 10.5 |
Conagra Restructuring Plan | Other selling, general and administrative expenses | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 2.7 |  | 2.7 |  | 2.7 | 2.7
Recognized pre-tax expenses | 0.2 |  | 0.2 |  | 0.5 |
Conagra Restructuring Plan | Other selling, general and administrative expenses | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.3 |  | 0.3 |  | 0.3 | 0.3
Recognized pre-tax expenses |  |  | 0.1 |  | 0.3 |
Conagra Restructuring Plan | Total selling, general and administrative expenses |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 61.9 |  | 61.9 |  | 61.9 | 61.9
Recognized pre-tax expenses | 5.3 |  | 5.6 |  | 54.1 |
Conagra Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 47.1 |  | 47.1 |  | 47.1 | 47.1
Recognized pre-tax expenses | 2.3 |  | 3.2 |  | 45.7 |
Conagra Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 6.9 |  | 6.9 |  | 6.9 | 6.9
Recognized pre-tax expenses | 0.6 |  | (0.5) |  | 1.9 |
Conagra Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 1.4 |  | 1.4 |  | 1.4 | 1.4
Recognized pre-tax expenses | 0.2 |  | 0.2 |  | 1.4 |
Conagra Restructuring Plan | Total selling, general and administrative expenses | Reporting segments | Foodservice |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.3 |  | 0.3 |  | 0.3 | 0.3
Recognized pre-tax expenses |  |  | 0.3 |  | 0.3 |
Conagra Restructuring Plan | Total selling, general and administrative expenses | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 6.2 |  | 6.2 |  | 6.2 | 6.2
Recognized pre-tax expenses | 2.2 |  | 2.4 |  | 4.8 |
Conagra Restructuring Plan | Total |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 147.8 |  | 147.8 |  | 147.8 | 147.8
Recognized pre-tax expenses | 10.5 |  | 25.6 |  | 137.8 |
Conagra Restructuring Plan | Total | Reporting segments | Grocery & Snacks |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 89.1 |  | 89.1 |  | 89.1 | 89.1
Recognized pre-tax expenses | 2.6 |  | 8.4 |  | 87.7 |
Conagra Restructuring Plan | Total | Reporting segments | Refrigerated & Frozen |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 50.8 |  | 50.8 |  | 50.8 | 50.8
Recognized pre-tax expenses | 5.5 |  | 14.3 |  | 43.6 |
Conagra Restructuring Plan | Total | Reporting segments | International |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 1.4 |  | 1.4 |  | 1.4 | 1.4
Recognized pre-tax expenses | 0.2 |  | 0.2 |  | 1.4 |
Conagra Restructuring Plan | Total | Reporting segments | Foodservice |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 0.3 |  | 0.3 |  | 0.3 | 0.3
Recognized pre-tax expenses |  |  | 0.3 |  | 0.3 |
Conagra Restructuring Plan | Total | Corporate |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 6.2 |  | 6.2 |  | 6.2 | 6.2
Recognized pre-tax expenses | 2.2 |  | 2.4 |  | 4.8 |
Conagra Restructuring Plan | Pension And Postretirement Nonservice Cost Income |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | $ 0.6 |  | $ 0.6 |  | 0.6 | $ 0.6
Recognized pre-tax expenses |  |  |  |  | $ 0.6 |

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