Fair Value Measurements, Derivative Instruments and Hedging Activities - Estimated Carrying and Fair Values of Financial Instrument Assets and Liabilities Not Measured at Fair Value on Recurring Basis (Detail) (Financial Instruments Not Measured at Fair Value on a Recurring Basis, USD $) In Millions, unless otherwise specified	Feb. 28, 2015	Nov. 30, 2014
Carrying Value
Assets
Cash and cash equivalents	$ 241	$ 240
Restricted cash	7	11
Long-term other assets	150	156
Total	398	407
Liabilities
Total	9,139	9,088
Carrying Value | Fixed Rate
Liabilities
Debt	4,290	4,433
Carrying Value | Floating Rate
Liabilities
Debt	4,849	4,655
Fair Value | Level 1
Assets
Cash and cash equivalents	241	240
Restricted cash	7	11
Long-term other assets	1	1
Total	249	252
Liabilities
Total	0	0
Fair Value | Level 1 | Fixed Rate
Liabilities
Debt	0	0
Fair Value | Level 1 | Floating Rate
Liabilities
Debt	0	0
Fair Value | Level 2
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Long-term other assets	102	103
Total	102	103
Liabilities
Total	9,453	9,305
Fair Value | Level 2 | Fixed Rate
Liabilities
Debt	4,624	4,743
Fair Value | Level 2 | Floating Rate
Liabilities
Debt	4,829	4,562
Fair Value | Level 3
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Long-term other assets	44	49
Total	44	49
Liabilities
Total	0	0
Fair Value | Level 3 | Fixed Rate
Liabilities
Debt	0	0
Fair Value | Level 3 | Floating Rate
Liabilities
Debt	$ 0	$ 0