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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES - Summary of Comparative Financial Results, Income Statement Items (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 26, 2017 | Nov. 27, 2016 | Nov. 26, 2017 | Nov. 27, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Income (loss) from discontinued operations, net of tax | $ 0.4 | $ 11.6 | $ 0.1 | $ 103.0
Net income (loss) from discontinued operations attributable to Conagra Brands, Inc. | 0.4 | 8.4 | 0.1 | 96.2
Lamb Weston | Discontinued operations, spinoff |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Net sales | 0.0 | 636.0 | 0.0 | 1,407.9
Income (loss) from discontinued operations before income taxes and equity method investment earnings | 0.0 | 46.3 | (0.3) | 175.1
Income (loss) before income taxes and equity method investment earnings | 0.0 | 46.3 | (0.3) | 175.1
Income tax expense (benefit) | 0.0 | 39.1 | (0.1) | 88.6
Equity method investment earnings | 0.0 | 5.3 | 0.0 | 15.9
Income (loss) from discontinued operations, net of tax | 0.0 | 12.5 | (0.2) | 102.4
Less: Net income attributable to noncontrolling interests | 0.0 | 3.2 | 0.0 | 6.8
Net income (loss) from discontinued operations attributable to Conagra Brands, Inc. | $ 0.0 | $ 9.3 | $ (0.2) | $ 95.6

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