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RESTRUCTURING ACTIVITIES - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 7 Months Ended | 9 Months Ended | 66 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 25, 2019 | Aug. 26, 2018 | Aug. 25, 2019 | Aug. 25, 2019 | Aug. 25, 2019 | Dec. 31, 2018
Pinnacle Integration Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | $ 260.9 |  | $ 260.9 | $ 260.9 | $ 260.9 | $ 360.0
Cash charges expected to be incurred |  |  |  |  |  | 285.0
Non-cash charges expected to be incurred |  |  |  |  |  | $ 75.0
Cash charges incurred or expected to be incurred | 251.8 |  | 251.8 | 251.8 | 251.8 |
Non-cash charges incurred or expected to be incurred | 9.1 |  | 9.1 | 9.1 | 9.1 |
Recognized charges | 27.7 |  |  | 195.9 |  |
Charges that have resulted or will result in cash outflows | 25.5 |  |  |  |  |
Non-cash charges | 2.2 |  |  |  |  |
Charges that have resulted or will result in cash outflows |  |  |  | 189.0 |  |
Non-cash charges |  |  |  | 6.9 |  |
Conagra Restructuring Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 98.4 |  | 98.4 | 98.4 | 98.4 |
Cash charges incurred or expected to be incurred | 32.1 |  | 32.1 | 32.1 | 32.1 |
Non-cash charges incurred or expected to be incurred | 66.3 |  | 66.3 | 66.3 | 66.3 |
Recognized charges | 21.1 |  | 23.3 |  |  |
Charges that have resulted or will result in cash outflows | 4.9 |  |  |  |  |
Non-cash charges | 16.2 |  |  |  |  |
Charges that have resulted or will result in cash outflows |  |  | 6.3 |  |  |
Non-cash charges |  |  | 17.0 |  |  |
SCAE Plan |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Charges expected to be incurred | 471.9 |  | 471.9 | 471.9 | 471.9 |
Cash charges expected to be incurred | 321.6 |  | 321.6 | 321.6 | 321.6 |
Non-cash charges expected to be incurred | 150.3 |  | $ 150.3 | $ 150.3 | 150.3 |
Recognized charges | $ 1.3 | $ 0.6 |  |  | 471.2 |
Charges that have resulted or will result in cash outflows |  |  |  |  | 320.9 |
Non-cash charges |  |  |  |  | 150.3 |
SCAE Plan | Cost of goods sold |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Recognized charges |  |  |  |  | 103.3 |
SCAE Plan | Selling, general and administrative expenses |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Recognized charges |  |  |  |  | 365.6 |
SCAE Plan | Reclassified to Pension and postretirement non-service income |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Recognized charges |  |  |  |  | $ 2.3 |

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