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Debt and Derivatives - Summary of Outstanding Debt (Details) - USD ($) | May 31, 2019 | May 31, 2018
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Debt due within one year |  |
Debt due within one year | $ 312,264,000 | $ 0
Debt issuance costs | (236,000) | 0
Debt due after one year |  |
Debt issuance costs | (16,150,000) | (19,119,000)
Total debt due after one year | 2,537,507,000 | 2,535,309,000
Term loan due 2020 |  |
Debt due within one year |  |
Debt due within one year | $ 200,000,000 | 0
Debt due after one year |  |
Effective interest rate | 3.06% |
Senior notes |  |
Debt due after one year |  |
Face value | $ 2,550,000,000.0 |
Senior notes | Senior Notes 4.30%, 2022 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 250,000,000 | 250,000,000
Stated interest rate | 4.30% |
Senior notes | Senior Notes, 2.90%, 2022 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 650,000,000 | 650,000,000
Stated interest rate | 2.90% |
Senior notes | Senior Notes, 3.25%, 2023 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 300,000,000 | 300,000,000
Stated interest rate | 3.25% |
Senior notes | Senior Notes, 2.78%, 2023 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 51,684,000 | 52,119,000
Effective interest rate | 2.78% |
Senior notes | Senior Notes, 2.78%, 2023 Maturity | G & K Services |  |
Debt due after one year |  |
Stated interest rate | 3.73% |
Face value | $ 50,000,000.0 |
Senior notes | Senior Notes, 3.11%, 2025 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 51,973,000 | 52,309,000
Effective interest rate | 3.11% |
Senior notes | Senior Notes, 3.11%, 2025 Maturity | G & K Services |  |
Debt due after one year |  |
Stated interest rate | 3.88% |
Face value | $ 50,000,000.0 |
Senior notes | Senior Notes, 3.70%, 2027 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 1,000,000,000 | 1,000,000,000
Stated interest rate | 3.70% |
Senior notes | Senior Notes, 6.15%, 2037 Maturity |  |
Debt due after one year |  |
Long-term debt, non-current | $ 250,000,000 | 250,000,000
Stated interest rate | 6.15% |
Commercial paper |  |
Debt due within one year |  |
Debt due within one year | $ 112,500,000 | $ 0
Debt due after one year |  |
Effective interest rate | 2.68% |

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