Segment Information - Geographic Area Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 26	$ 4,789
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		2,647
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		1,367
Australia and Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		615
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues		$ 161