Long-Term Debt - Summary of Long-Term Debt Carrying Values Including Unamortized Discounts and Premiums (Detail) - USD ($) $ in Thousands	Feb. 28, 2017	Nov. 30, 2016
Debt Instrument [Line Items]
Long-term debt	$ 6,267,491	$ 5,483,355
Structured Notes [Member]
Debt Instrument [Line Items]
Long-term debt	316,408	255,203
Unsecured Debt [Member] \| 5.125% Senior Notes, due 2018 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 814,623	817,813
Debt instrument interest rate	5.125%
Effective interest rate	3.46%
Unsecured Debt [Member] \| 8.5% Senior Notes, due 2019 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 771,253	778,367
Debt instrument interest rate	8.50%
Effective interest rate	4.00%
Unsecured Debt [Member] \| 2.375% Euro Medium Term Notes, due 2020 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 528,220	528,250
Debt instrument interest rate	2.375%
Effective interest rate	2.42%
Unsecured Debt [Member] \| 6.875% Senior Note, due 2021 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 819,951	823,797
Debt instrument interest rate	6.875%
Effective interest rate	4.40%
Unsecured Debt [Member] \| 2.25% Euro Medium Term Notes, due 2022 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 3,863	3,848
Debt instrument interest rate	2.25%
Effective interest rate	4.08%
Unsecured Debt [Member] \| 5.125% Senior Notes, due 2023 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 617,704	618,355
Debt instrument interest rate	5.125%
Effective interest rate	4.55%
Unsecured Debt [Member] \| 4.85% Senior Notes, due 2027 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 738,748	0
Debt instrument interest rate	4.85%
Effective interest rate	4.93%
Unsecured Debt [Member] \| 6.45% Senior Debentures, due 2027 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 377,313	377,806
Debt instrument interest rate	6.45%
Effective interest rate	5.46%
Unsecured Debt [Member] \| 3.875% Convertible Senior Debentures due 2029 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 345,850	346,187
Debt instrument interest rate	3.875%
Effective interest rate	3.50%
Unsecured Debt [Member] \| 6.25% Senior Debentures, due 2036 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 512,309	512,396
Debt instrument interest rate	6.25%
Effective interest rate	6.03%
Unsecured Debt [Member] \| 6.50% Senior Notes, due 2043 [Member]
Debt Instrument [Line Items]
Long-term debt	$ 421,249	$ 421,333
Debt instrument interest rate	6.50%
Effective interest rate	6.09%

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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(a)(1))
-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 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: 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(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: 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

Reference 3: 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

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