Guarantees, Indemnifications and Warranties (Tables)

9 Months Ended

Jul. 31, 2017

Guarantees and Product Warranties [Abstract]

Changes in Aggregate Product Warranty Liabilities

The Company's aggregate product warranty liabilities as of July 31, 2017, and changes during the nine months ended July 31, 2017 were as follows:

	Nine Months Ended July 31, 2017
	In millions
Balance at beginning of period	$	497
Accruals for warranties issued	264
Adjustments related to pre-existing warranties (including changes in estimates)	(13		)
Settlements made (in cash or in kind)	(267		)
Balance at end of period	$	481