Condensed Combined Statements of Operations - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Income Statement [Abstract]
Net revenue	$ 4,147	$ 4,472
Costs and expenses:
Cost of revenue	3,569	3,985
Selling, general and administrative	353	383
Amortization of intangible assets		99
Restructuring charges	61	145
Separation costs	195	34
Defined benefit plan remeasurement benefit	(1)
Total costs and expenses	4,177	4,646
Loss from operations	(30)	(174)
Interest and other, net	(26)	(38)
Loss before taxes	(56)	(212)
Benefit for taxes	19	34
Net loss	$ (37)	$ (178)