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Debt - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | Mar. 31, 2013 Unsecured Floating Rate Euro Denominated Export Credit Facility [Member] | Aug. 31, 2013 Unsecured Floating Rate Export Credit Facilities [Member] | Jul. 31, 2013 Unsecured Floating Rate Bank Loan [Member] | Feb. 28, 2013 Unsecured Publicly-Traded Notes | Dec. 31, 2012 Unsecured Publicly-Traded Notes | Aug. 31, 2013 Unsecured Floating Rate Euro Denominated Revolving Bank Loan Facility [Domain] | Sep. 30, 2013 Revolving Credit Facility [Member]
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Debt Instrument [Line Items] |  |  |  |  |  |  |
Issuance of unsecured publicly-traded notes | $ 311 |  |  | $ 500 | $ 500 |  |
Debt instrument, interest rate |  |  |  | 1.20% | 1.90% |  |
Unsecured long-term debt |  | $ 526 | $ 150 |  |  | $ 265 | $ 300

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Details
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- Definition Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: 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 + Details
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