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Unsecured Debt - Additional Information (Details) € in Millions, £ in Millions, $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Apr. 30, 2015 | Nov. 30, 2016 GBP (£) | Dec. 01, 2016 USD ($) | Nov. 30, 2016 EUR (€) | Nov. 30, 2016 USD ($)
Revolving Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  | $ 2,900
Long-term debt |  |  |  |  | 300
Line of credit facility available amount |  |  |  |  | 2,400
Debt instrument, basis spread on variable rate |  | 30.00% |  |  |
Revolving Credit Facility | Main Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  |  |  |  | 2,600
Commitment fee percentage | 35.00% |  |  |  |
Revolving Credit Facility | Main Credit Facility | U.S. Dollar Denominated Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt |  |  |  |  | $ 1,900
Revolving Credit Facility | Main Credit Facility | Euro Denominated |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | € |  |  |  | € 500 |
Revolving Credit Facility | Main Credit Facility | Sterling Denominated Debt |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term debt | £ |  | £ 169 |  |  |
Revolving Credit Facility | Main Credit Facility | Utilization of less than One Third of Available Line of Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Additional utilization fee |  | 0.10% |  | 0.10% | 0.10%
Revolving Credit Facility | Main Credit Facility | Utilization of more than One Third of Available Line of Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Additional utilization fee |  | 0.20% |  | 0.20% | 0.20%
Revolving Credit Facility | Main Credit Facility | Utilization of more than Two Thirds of Available Line of Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Additional utilization fee |  | 0.40% |  | 0.40% | 0.40%
Subsequent Event | Export Credit Facility |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  | $ 800 |  |

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- Definition Line of Credit Facility, Additional Utilization Fee Basis Points + 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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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 Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + 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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