Segment Information - Geographic Area Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2019	May 31, 2018	May 31, 2019	May 31, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 4,838	$ 4,357	$ 9,511	$ 8,589
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,639		5,159
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	1,350		2,749
Australia and Asia
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	741		1,324
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 108		$ 279