Commitments (Tables)

12 Months Ended

Nov. 30, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Shipbuilding, Operating Leases, and Port Facilities and Other Commitments

	Fiscal
(in millions)	2018		2019		2020		2021		2022		Thereafter		Total
Shipbuilding	$	2,919	$	3,819	$	3,569	$	2,628	$	2,357	$	—	$	15,292
Operating leases	49		47		43		34		32		170		375
Port facilities and other	190		182		162		157		151		926		1,768
	$	3,158	$	4,048	$	3,774	$	2,819	$	2,540	$	1,096	$	17,435