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RESTRUCTURING ACTIVITIES (Consolidated Amounts) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
May. 31, 2015 | May. 25, 2014
SCAE Plan |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | $ 267.3 |
Restructuring and related cost, incurred cost | 85.2 |
Restructured and related cost incurred to date | 197.3 |
SCAE Plan | Multi-employer pension costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 12.9 |
Restructuring and related cost, incurred cost | 1.7 |
Restructured and related cost incurred to date | 12.9 |
SCAE Plan | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 57.2 |
Restructuring and related cost, incurred cost | 26.5 |
Restructured and related cost incurred to date | 44.0 |
SCAE Plan | Other cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 10.4 |
Restructuring and related cost, incurred cost | 4.0 |
Restructured and related cost incurred to date | 5.4 |
SCAE Plan | Total cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 80.5 |
Restructuring and related cost, incurred cost | 32.2 |
Restructured and related cost incurred to date | 62.3 |
SCAE Plan | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 91.8 |
Restructuring and related cost, incurred cost | 15.0 |
Restructured and related cost incurred to date | 84.0 |
SCAE Plan | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 2.9 |
Restructuring and related cost, incurred cost | 1.8 |
Restructured and related cost incurred to date | 2.4 |
SCAE Plan | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 24.1 |
Restructuring and related cost, incurred cost | 18.2 |
Restructured and related cost incurred to date | 22.4 |
SCAE Plan | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 68.0 |
Restructuring and related cost, incurred cost | 18.0 |
Restructured and related cost incurred to date | 26.2 |
SCAE Plan | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 186.8 |
Restructuring and related cost, incurred cost | 53.0 |
Restructured and related cost incurred to date | 135.0 |
SCAE Plan | Consumer Foods |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 84.8 |
Restructuring and related cost, incurred cost | 35.1 |
Restructured and related cost incurred to date | 51.3 |
SCAE Plan | Consumer Foods | Multi-employer pension costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 1.5 |
Restructuring and related cost, incurred cost | 1.5 |
Restructured and related cost incurred to date | 1.5 |
SCAE Plan | Consumer Foods | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 31.2 |
Restructuring and related cost, incurred cost | 19.1 |
Restructured and related cost incurred to date | 21.5 |
SCAE Plan | Consumer Foods | Other cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 6.3 |
Restructuring and related cost, incurred cost | 1.2 |
Restructured and related cost incurred to date | 2.0 |
SCAE Plan | Consumer Foods | Total cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 39.0 |
Restructuring and related cost, incurred cost | 21.8 |
Restructured and related cost incurred to date | 25.0 |
SCAE Plan | Consumer Foods | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 25.3 |
Restructuring and related cost, incurred cost | 8.3 |
Restructured and related cost incurred to date | 21.0 |
SCAE Plan | Consumer Foods | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Consumer Foods | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 2.6 |
Restructuring and related cost, incurred cost | 0.6 |
Restructured and related cost incurred to date | 0.9 |
SCAE Plan | Consumer Foods | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 17.9 |
Restructuring and related cost, incurred cost | 4.4 |
Restructured and related cost incurred to date | 4.4 |
SCAE Plan | Consumer Foods | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 45.8 |
Restructuring and related cost, incurred cost | 13.3 |
Restructured and related cost incurred to date | 26.3 |
SCAE Plan | Corporate |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 93.7 |
Restructuring and related cost, incurred cost | 10.8 |
Restructured and related cost incurred to date | 68.4 |
SCAE Plan | Corporate | Multi-employer pension costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 11.4 |
Restructuring and related cost, incurred cost | 0.2 |
Restructured and related cost incurred to date | 11.4 |
SCAE Plan | Corporate | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Corporate | Other cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Corporate | Total cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 11.4 |
Restructuring and related cost, incurred cost | 0.2 |
Restructured and related cost incurred to date | 11.4 |
SCAE Plan | Corporate | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 45.2 |
Restructuring and related cost, incurred cost | 1.5 |
Restructured and related cost incurred to date | 44.1 |
SCAE Plan | Corporate | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 2.9 |
Restructuring and related cost, incurred cost | 1.8 |
Restructured and related cost incurred to date | 2.4 |
SCAE Plan | Corporate | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.4 |
Restructuring and related cost, incurred cost | 0.4 |
Restructured and related cost incurred to date | 0.4 |
SCAE Plan | Corporate | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 33.8 |
Restructuring and related cost, incurred cost | 6.9 |
Restructured and related cost incurred to date | 10.1 |
SCAE Plan | Corporate | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 82.3 |
Restructuring and related cost, incurred cost | 10.6 |
Restructured and related cost incurred to date | 57.0 |
SCAE Plan | Commercial Foods |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 8.0 |
Restructuring and related cost, incurred cost | 3.2 |
Restructured and related cost incurred to date | 8.0 |
SCAE Plan | Commercial Foods | Multi-employer pension costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Other cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Total cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 8.0 |
Restructuring and related cost, incurred cost | 3.2 |
Restructured and related cost incurred to date | 8.0 |
SCAE Plan | Commercial Foods | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Commercial Foods | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 8.0 |
Restructuring and related cost, incurred cost | 3.2 |
Restructured and related cost incurred to date | 8.0 |
SCAE Plan | Private Brands |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 80.8 |
Restructuring and related cost, incurred cost | 36.1 |
Restructured and related cost incurred to date | 69.6 |
SCAE Plan | Private Brands | Multi-employer pension costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Private Brands | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 26.0 |
Restructuring and related cost, incurred cost | 7.4 |
Restructured and related cost incurred to date | 22.5 |
SCAE Plan | Private Brands | Other cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 4.1 |
Restructuring and related cost, incurred cost | 2.8 |
Restructured and related cost incurred to date | 3.4 |
SCAE Plan | Private Brands | Total cost of goods sold |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 30.1 |
Restructuring and related cost, incurred cost | 10.2 |
Restructured and related cost incurred to date | 25.9 |
SCAE Plan | Private Brands | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 13.3 |
Restructuring and related cost, incurred cost | 2.0 |
Restructured and related cost incurred to date | 10.9 |
SCAE Plan | Private Brands | Accelerated depreciation |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 0.0 |
Restructuring and related cost, incurred cost | 0.0 |
Restructured and related cost incurred to date | 0.0 |
SCAE Plan | Private Brands | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 21.1 |
Restructuring and related cost, incurred cost | 17.2 |
Restructured and related cost incurred to date | 21.1 |
SCAE Plan | Private Brands | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 16.3 |
Restructuring and related cost, incurred cost | 6.7 |
Restructured and related cost incurred to date | 11.7 |
SCAE Plan | Private Brands | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 50.7 |
Restructuring and related cost, incurred cost | 25.9 |
Restructured and related cost incurred to date | 43.7 |
Acquisition-Related Restructuring |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, expected cost | 23.7 |
Restructured and related cost incurred to date | 23.7 |
Acquisition-Related Restructuring | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 9.0 |
Acquisition-Related Restructuring | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 7.9 |
Acquisition-Related Restructuring | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 6.8 |
Acquisition-Related Restructuring | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 23.7 |
Acquisition-Related Restructuring | Consumer Foods |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructuring and related cost, incurred cost | 0.3 | $ 9.4
Restructured and related cost incurred to date | 21.2 |
Acquisition-Related Restructuring | Consumer Foods | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 9.0 |
Acquisition-Related Restructuring | Consumer Foods | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 5.4 |
Acquisition-Related Restructuring | Consumer Foods | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 6.8 |
Acquisition-Related Restructuring | Consumer Foods | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 21.2 |
Acquisition-Related Restructuring | Corporate |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 2.5 |
Acquisition-Related Restructuring | Corporate | Severance and related costs |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 0.0 |
Acquisition-Related Restructuring | Corporate | Fixed asset impairment / Loss on disposal |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 2.5 |
Acquisition-Related Restructuring | Corporate | Other selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | 0.0 |
Acquisition-Related Restructuring | Corporate | Total selling, general and administrative expenses |  |
Restructuring Cost and Reserve [Line Items] |  |
Restructured and related cost incurred to date | $ 2.5 |

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