Guarantees (Tables)

12 Months Ended

Oct. 31, 2015

Guarantees

Changes in aggregate product warranty liabilities and changes

	As of October 31
	2015			2014
	In millions
Balance at beginning of year	$	1,956		$	2,031
Accruals for warranties issued		1,507			1,840
Adjustments related to pre-existing warranties (including changes in estimates)		(32	)		12
Settlements made (in cash or in kind)		(1,723	)		(1,927	)
Balance at end of year	$	1,708		$	1,956