Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risk - Fuel Derivatives Outstanding (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Nov. 30, 2019 |
Nov. 30, 2018 |
Nov. 30, 2017 |
|
Derivative [Line Items] | |||
Gains (losses) on fuel derivatives, net | $ 0 | $ 59 | $ 35 |
Fuel | |||
Derivative [Line Items] | |||
Unrealized gains on fuel derivatives, net | 0 | 94 | 227 |
Realized losses on fuel derivatives, net | 0 | (35) | (192) |
Gains (losses) on fuel derivatives, net | $ 0 | $ 59 | $ 35 |