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LONG-TERM DEBT - Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Millions | May 31, 2020 | May 26, 2019 | May 27, 2018
--- | --- | --- | ---
Debt Instrument [Line Items] |  |  |
Total face value of debt | $ 9,786.7 | $ 10,722.0 |
Unamortized fair value adjustment | 21.2 | 24.5 |
Unamortized discounts | (17.2) | (19.0) |
Unamortized debt issuance costs | (44.6) | (52.1) |
Adjustment due to hedging activity | 0.2 | 0.9 |
Less current installments | (845.5) | (20.6) |
Total long-term debt | 8,900.8 | 10,655.7 |
Senior debt | 5.4% senior debt due November 2048 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 1,000.0 | 1,000.0 |
Senior debt | 4.65% senior debt due January 2043 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 176.7 | 176.7 |
Senior debt | 6.625% senior debt due August 2039 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 91.4 | 91.4 |
Senior debt | 5.3% senior debt due November 2038 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 1,000.0 | 1,000.0 |
Senior debt | 8.25% senior debt due September 2030 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 300.0 | 300.0 |
Senior debt | 4.85% senior debt due November 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 1,300.0 | 1,300.0 |
Senior debt | 7.0% senior debt due October 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 382.2 | 382.2 |
Senior debt | 6.7% senior debt due August 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 9.2 | 9.2 |
Senior debt | 7.125% senior debt due October 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 262.5 | 262.5 |
Senior debt | 4.6% senior debt due November 2025 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 1,000.0 | 1,000.0 |
Senior debt | 4.3% senior debt due May 2024 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 1,000.0 | 1,000.0 |
Senior debt | 3.2% senior debt due January 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 837.0 | 837.0 |
Senior debt | 3.25% senior debt due September 2022 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 250.0 | 250.0 |
Senior debt | 3.8% senior debt due October 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 1,200.0 | 1,200.0 |
Senior debt | 4.95% senior debt due August 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 126.6 | 126.6 |
Senior debt | LIBOR | LIBOR plus 0.75% senior debt due October 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt |  | 525.0 |
Senior debt | LIBOR | LIBOR plus 0.50% senior debt due October 2020 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 500.0 | 500.0 | $ 500.0
Term loan | LIBOR | LIBOR plus 1.50% term loan due October 2023 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt |  | 200.0 |
Term loan | LIBOR | LIBOR plus 1.375% term loan due October 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt |  | 200.0 |
Subordinated debt | 9.75% subordinated debt due March 2021 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 195.9 | 195.9 |
Lease financing obligations | 2.00% to 9.59% lease financing obligations due on various dates through 2033 |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | 155.1 | 165.4 |
Other indebtedness | Other indebtedness |  |  |
Debt Instrument [Line Items] |  |  |
Total face value of debt | $ 0.1 | $ 0.1 |

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