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 (Details) - Financial Instruments Not Measured at Fair Value on a Recurring Basis - USD ($) $ in Millions	Aug. 31, 2016	Nov. 30, 2015
Carrying Value
Assets
Cash and cash equivalents	$ 242	$ 647
Restricted cash	37	7
Long-term other assets	108	119
Total	387	773
Liabilities
Total	9,393	8,787
Carrying Value | Fixed Rate
Liabilities
Debt	5,274	5,193
Carrying Value | Floating Rate
Liabilities
Debt	4,119	3,594
Fair Value | Level 1
Assets
Cash and cash equivalents	242	647
Restricted cash	37	7
Long-term other assets	1	1
Total	280	655
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	73	87
Total	73	87
Liabilities
Total	9,685	9,039
Fair Value | Level 2 | Fixed Rate
Liabilities
Debt	5,631	5,450
Fair Value | Level 2 | Floating Rate
Liabilities
Debt	4,054	3,589
Fair Value | Level 3
Assets
Cash and cash equivalents	0	0
Restricted cash	0	0
Long-term other assets	34	31
Total	34	31
Liabilities
Total	0	0
Fair Value | Level 3 | Fixed Rate
Liabilities
Debt	0	0
Fair Value | Level 3 | Floating Rate
Liabilities
Debt	$ 0	$ 0