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Short Term Borrowings and Credit Lines - Additional Information (Detail) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
May 31, 2018 | May 31, 2017 | Aug. 28, 2015
Short-term Debt [Line Items] |  |  |
Notes payable | $ 336,000,000 | $ 325,000,000 |
Commercial paper |  |  |
Short-term Debt [Line Items] |  |  |
Notes payable | 325,000,000 | $ 325,000,000 |
Borrowing capacity | $ 2,000,000,000 |  |
Notes payable - interest rate | 1.77% | 0.86% |
Revolving Credit Facility |  |  |
Short-term Debt [Line Items] |  |  |
Borrowing capacity |  |  | $ 2,000,000,000
Line of credit facility extension period after maturity | 1 year |  |
Revolving credit facility, fee | 0.045% |  |
Line of credit facility, amount outstanding | $ 0 | $ 0 |
Sojitz America | Interest Bearing Accounts Payable |  |  |
Short-term Debt [Line Items] |  |  |
Accounts payable, due date period (in days) | 60 days |  |
60-day London Interbank Offered Rate (LIBOR) | Interest Bearing Accounts Payable |  |  |
Short-term Debt [Line Items] |  |  |
Basis spread on variable rate, above LIBOR | 0.75% |  |
London Interbank Offered Rate (LIBOR) | Revolving Credit Facility |  |  |
Short-term Debt [Line Items] |  |  |
Basis spread on variable rate, above LIBOR | 0.455% |  |

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- Definition Line of Credit Facility Extension Period After Maturity + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Weighted average interest rate of short-term debt outstanding calculated at point in time. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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