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Debt and Derivatives - Summary of Outstanding Debt (Details) - USD ($) | May 31, 2017 | May 31, 2016
--- | --- | ---
Debt due within one year |  |
Debt issuance costs | $ (100,000) | $ 0
Total debt due within one year | 362,900,000 | 250,000,000
Debt due after one year |  |
Debt issuance costs | (22,075,000) | (5,578,000)
Total debt due after one year | 2,770,624,000 | 1,044,422,000
Senior Notes, 2.85%, 2017 Maturity | Senior notes |  |
Debt due within one year |  |
Long-term Debt, current | $ 0 | 250,000,000
Debt due after one year |  |
Stated interest rate (as a percent) | 2.85% |
Senior Notes, 6.13%, 2018 Maturity | Senior notes |  |
Debt due within one year |  |
Long-term Debt, current | $ 300,000,000 | 0
Debt due after one year |  |
Long-term Debt, non-current | $ 0 | 300,000,000
Stated interest rate (as a percent) | 6.13% |
Commercial Paper, 1.24% | Commercial paper |  |
Debt due within one year |  |
Long-term Debt, current | $ 50,500,000 | 0
Debt due after one year |  |
Interest Rate (as a percent) | 1.24% |
Term Loan Facility | Line of Credit |  |
Debt due within one year |  |
Long-term Debt, current | $ 12,500,000 | 0
Debt due after one year |  |
Long-term Debt, non-current | $ 237,500,000 | 0
Interest Rate (as a percent) | 2.00% |
Senior Notes 4.30%, 2022 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 250,000,000 | 250,000,000
Stated interest rate (as a percent) | 4.30% |
Senior Notes, 2.90%, 2022 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 650,000,000 | 0
Stated interest rate (as a percent) | 2.90% |
Senior Notes, 3.25%, 2023 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 300,000,000 | 250,000,000
Stated interest rate (as a percent) | 3.25% |
Senior Notes, 2.78%, 2023 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 52,554,000 | 0
Interest Rate (as a percent) | 2.78% |
Senior Notes, 2.78%, 2023 Maturity | Senior notes | G & K Services |  |
Debt due after one year |  |
Face value | $ 50,000,000.0 |
Stated interest rate (as a percent) | 3.73% |
Senior Notes, 3.11%, 2025 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 52,645,000 | 0
Interest Rate (as a percent) | 3.11% |
Senior Notes, 3.11%, 2025 Maturity | Senior notes | G & K Services |  |
Debt due after one year |  |
Face value | $ 50,000,000.0 |
Stated interest rate (as a percent) | 3.88% |
Senior Notes, 3.70%, 2027 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 1,000,000,000 | 0
Stated interest rate (as a percent) | 3.70% |
Senior Notes, 6.15%, 2037 Maturity | Senior notes |  |
Debt due after one year |  |
Long-term Debt, non-current | $ 250,000,000 | $ 250,000,000
Stated interest rate (as a percent) | 6.15% |

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