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
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-Topic 210
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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Topic 942
-SubTopic 210
-Section S99
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Long-Term Debt - Summary of Long-Term Debt Carrying Values Including Unamortized Discounts and Premiums (Detail) - USD ($) $ in Thousands	Nov. 30, 2015	Nov. 30, 2014	May. 20, 2014	Mar. 01, 2013
Debt Instrument [Line Items]
Long-term debt	$ 5,641,892	$ 6,483,617
Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	5,641,892	6,313,617
Secured debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0	170,000
3.875% Senior Note, due 2015 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.875%
Effective interest rate	2.17%
3.875% Senior Note, due 2015 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0	507,944
5.5% Senior Notes, due 2016 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	5.50%
Effective interest rate	2.52%
5.5% Senior Notes, due 2016 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 353,025	363,229
5.125% Senior Notes, due 2018 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	5.125%
Effective interest rate	3.46%
5.125% Senior Notes, due 2018 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 830,298	842,359
8.5% Senior Notes, due 2019 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	8.50%
Effective interest rate	4.00%
8.5% Senior Notes, due 2019 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 806,125	832,797
2.375% Euro Medium Term Notes, due 2020 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.375%		2.375%
Effective interest rate	2.42%
2.375% Euro Medium Term Notes, due 2020 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 527,606	620,725
6.875% Senior Note, due 2021 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	6.875%
Effective interest rate	4.40%
6.875% Senior Note, due 2021 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 838,765	853,091
2.25% Euro Medium Term Notes, due 2022 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	2.25%
Effective interest rate	4.08%
2.25% Euro Medium Term Notes, due 2022 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 3,779	4,379
5.125% Senior Notes, due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	5.125%
Effective interest rate	4.55%
5.125% Senior Notes, due 2023 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 620,890	623,311
6.45% Senior Debentures, due 2027 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	6.45%
Effective interest rate	5.46%
6.45% Senior Debentures, due 2027 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 379,711	381,515
3.875% Convertible Senior Debentures due 2029 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	3.875%			3.875%
Effective interest rate	3.50%
3.875% Convertible Senior Debentures due 2029 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 347,307	349,261
6.25% Senior Debentures, due 2036 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	6.25%
Effective interest rate	6.03%
6.25% Senior Debentures, due 2036 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 512,730	513,046
6.50% Senior Notes, due 2043 [Member]
Debt Instrument [Line Items]
Debt instrument interest rate	6.50%
Effective interest rate	6.09%
6.50% Senior Notes, due 2043 [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term debt	$ 421,656	$ 421,960