Leases - Narrative (Details) $ in Millions	3 Months Ended
	Feb. 29, 2020 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease costs	$ 17
Operation lease amortization expense	30
Operating lease interest expense	31
Operating lease minimum commitment	454
Right-of-use assets obtained in exchange for operating lease liabilities	107
Net investment in leases	$ 127
Minimum
Lessee, Lease, Description [Line Items]
Lease renewal term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term	1 year
Lease renewal term	10 years