Stockholders' Deficit (Tables) (Tables)

9 Months Ended

Jul. 31, 2018

Accumulated Other Comprehensive Income (Loss) [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table presents changes in Accumulated other comprehensive loss, net of tax, included in our Consolidated Statements of Stockholders' Deficit:

(in millions)	Unrealized Gain on Marketable Securities		Foreign Currency Translation Adjustments			Defined Benefit Plans			Total
Balance as of April 30, 2018	$	—	$	(289	)	$	(1,865	)	$	(2,154	)
Other comprehensive loss before reclassifications	—		(13		)	—			(13		)
Amounts reclassified out of accumulated other comprehensive loss	—		—			29			29
Net current-period other comprehensive income (loss)	—		(13		)	29			16
Balance as of July 31, 2018	$	—	$	(302	)	$	(1,836	)	$	(2,138	)

(in millions)	Unrealized Gain on Marketable Securities		Foreign Currency Translation Adjustments			Defined Benefit Plans			Total
Balance as of October 31, 2017	$	—	$	(283	)	$	(1,928	)	$	(2,211	)
Other comprehensive loss before reclassifications	—		(19		)	(2		)	(21		)
Amounts reclassified out of accumulated other comprehensive loss	—		—			94			94
Net current-period other comprehensive income (loss)	—		(19		)	92			73
Balance as of July 31, 2018	$	—	$	(302	)	$	(1,836	)	$	(2,138	)

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

The following table presents the amounts reclassified from Accumulated other comprehensive loss and the affected line item in our Consolidated Statements of Operations:

		Three Months Ended July 31,					Nine Months Ended July 31,
	Location in Consolidated Statements of Operations	2018		2017			2018			2017
Defined benefit plans
Amortization of actuarial loss	Selling, general and administrative expenses	$	29	$	36		$	86		$	106
Settlements	Selling, general and administrative expenses	—		—			9			—
Settlements	Restructuring charges	—		23			—			23
	Total before tax	29		59			95			129
	Tax expense	—		(6		)	(1		)	(7		)
Total reclassifications for the period, net of tax		$	29	$	53		$	94		$	122