Segment Information - Geographic Area Revenue (Details) - USD ($) $ in Millions	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 4,789	$ 4,673
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,647	2,520
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,367	1,399
Australia and Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	615	584
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 161	$ 170