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LONG-TERM DEBT - Narrative (Details) |  |  |  |  | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 26, 2018 USD ($) | Mar. 15, 2018 USD ($) | Jan. 25, 2018 USD ($) | Nov. 09, 2016 USD ($) | May 27, 2018 USD ($) | Feb. 25, 2018 USD ($) | Feb. 26, 2017 USD ($) | Aug. 28, 2016 USD ($) | Feb. 28, 2016 USD ($) | Nov. 29, 2015 USD ($) | May 27, 2018 USD ($) | May 28, 2017 USD ($) | May 29, 2016 USD ($) | Jul. 11, 2018 USD ($) | Nov. 26, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  |  |  |  |  | $ 242,300,000 | $ 1,064,500,000 | $ 2,523,200,000 |  |
Repayment of remaining capital lease liability balance |  |  |  |  |  | $ 28,500,000 |  |  |  |  |  |  |  |  |
Aggregate principal amount issued |  |  |  |  | $ 3,526,400,000 |  |  |  |  |  | 3,526,400,000 | 2,952,500,000 |  |  |
Net loss on early retirement of debt |  |  |  |  |  |  |  |  |  |  | 0 | 93,300,000 | 23,900,000 |  |
Issuance of term loans |  |  |  |  |  |  |  |  | $ 600,000,000.0 |  |  |  |  |  |
Interest paid from continuing operations |  |  |  |  |  |  |  |  |  |  | $ 164,500,000 | 223,700,000 | 322,000,000 |  |
Required ratio of EBITDA to interest expense (not less than) |  |  |  |  | 3.0 |  |  |  |  |  | 3.0 |  |  |  |
Required ratio of funded debt to EBITDA (not greater than) |  |  |  |  | 3.75 |  |  |  |  |  | 3.75 |  |  |  |
Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss on early retirement of debt |  |  |  | $ 60,600,000 |  |  |  |  |  |  |  |  |  |  |
5.819% senior notes due 2017 | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of notes exchanged |  |  |  | 250,200,000 |  |  |  |  |  |  |  |  |  |  |
7.0% senior notes due 2019 | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of notes exchanged |  |  |  | 86,900,000 |  |  |  |  |  |  |  |  |  |  |
1.9% senior notes due 2018 | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of notes exchanged |  |  |  | 880,400,000 |  |  |  |  |  |  |  |  |  |  |
LIBOR plus 0.50% senior debt due October 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000,000.0
LIBOR plus 0.50% senior debt due October 2020 | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |
2.1% senior notes due 2018 | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of notes exchanged |  |  |  | 154,900,000 |  |  |  |  |  |  |  |  |  |  |
4.95% senior notes due 2020 | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of notes exchanged |  |  |  | $ 71,100,000 |  |  |  |  |  |  |  |  |  |  |
Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss on early retirement of debt |  |  |  |  |  |  | $ 32,700,000 |  | 23,900,000 |  |  |  |  |  |
Senior notes | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |
Senior notes | 5.819% senior notes due 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  | $ 224,800,000 |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  | 5.819% |  |  | 5.819% |  |  |  |  |  |  |  |
Senior notes | 7.0% senior notes due 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  | $ 248,200,000.0 |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  | 7.00% |  |  | 7.00% |  |  |  |  |  |  |  |
Senior notes | 1.9% senior notes due 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  | $ 119,600,000 |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  | 1.90% |  | 1.90% |  |  |  |  |  |  |  |  |
Senior notes | LIBOR plus 0.50% senior debt due October 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount issued |  |  |  |  | $ 500,000,000 |  |  |  |  |  | $ 500,000,000 | $ 0 |  |  |
Senior notes | 2.1% senior notes due 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  | $ 70,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  | 2.10% |  | 2.10% |  |  |  |  |  |  |  |  |  |  |
Senior notes | 4.95% senior notes due 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  | 4.95% |  |  |  |  |  |  |  |  |  |  |
Senior notes | Senior notes due 2043 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of senior notes repurchased |  |  |  |  |  |  |  |  | 560,300,000 |  |  |  |  |  |
Senior notes | Senior notes due 2039 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of senior notes repurchased |  |  |  |  |  |  |  |  | 341,800,000 |  |  |  |  |  |
Senior notes | Senior notes due 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of senior notes repurchased |  |  |  |  |  |  |  |  | 139,900,000 |  |  |  |  |  |
Senior notes | Senior notes due 2026 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of senior notes repurchased |  |  |  |  |  |  |  |  | 110,000,000 |  |  |  |  |  |
Senior notes | Senior notes due 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of senior notes repurchased |  |  |  |  |  |  |  |  | 85,000,000 |  |  |  |  |  |
Senior notes | Senior notes due 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of senior notes repurchased |  |  |  |  |  |  |  |  | $ 163,000,000 |  |  |  |  |  |
Senior notes | 1.30% senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  | 1.30% |  |  |  |  |  |
Principal balance repaid on senior notes |  |  |  |  |  |  |  |  | $ 750,000,000.0 |  |  |  |  |  |
Senior notes | 1.35% senior notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long-term debt |  |  |  |  |  |  |  |  |  | $ 250,000,000.0 |  |  |  |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  | 1.35% |  |  |  |  |
Floating rate notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal balance repaid on floating rate notes |  |  |  |  |  |  |  | $ 550,000,000.0 |  |  |  |  |  |  |
Ralcorp |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss on early retirement of debt |  |  |  |  |  |  |  |  |  |  |  |  | 5,400,000 |  |
Repayment of senior notes issued by Ralcorp |  |  |  |  |  |  |  |  | $ 33,900,000 |  |  |  | $ 33,900,000 |  |
Ralcorp | Senior notes | Senior notes due 2039 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  | 6.625% |  |
Repayment of senior notes issued by Ralcorp |  |  |  |  |  |  |  |  |  |  |  |  | $ 16,700,000 |  |
Ralcorp | Senior notes | Senior notes due 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (percent) |  |  |  |  |  |  |  |  |  |  |  |  | 4.95% |  |
Repayment of senior notes issued by Ralcorp |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,200,000 |  |
Spinoff | Lamb Weston |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lamb Weston notes |  |  |  | $ 1,540,000,000.00 |  |  |  |  |  |  |  |  |  |  |
Term Loan Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount (in excess of) |  |  |  |  |  | $ 300,000,000.0 |  |  |  |  |  |  |  |  |
Borrowings under term loan agreement |  |  |  |  | $ 300,000,000.0 |  |  |  |  |  |  |  |  |  |
Term Loan Credit Agreement | LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percent) |  |  |  |  |  |  |  |  |  |  | 0.75% |  |  |  |
Pinnacle Foods Inc. (Pinnacle) | Subsequent event | Bridge Financing |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount (in excess of) | $ 9,000,000,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pinnacle Foods Inc. (Pinnacle) | Subsequent event | Term loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount (in excess of) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,300,000,000.0 |
Required ratio of EBITDA to interest expense (not less than) |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.0 |
Expected | Pinnacle Foods Inc. (Pinnacle) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate amount of long-term debt expected to be incurred | 8,300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Incremental cash proceeds expected from issuance of equity and/or divestitures | $ 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |

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