(Tables)

9 Months Ended

Jul. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended July 31,												Nine Months Ended July 31,
	Pension Benefits						Health and Life Insurance Benefits						Pension Benefits						Health and Life Insurance Benefits
(in millions)	2016			2015			2016			2015			2016			2015			2016			2015
Service cost for benefits earned during the period	$	2		$	3		$	1		$	2		$	7		$	9		$	4		$	5
Interest on obligation	29			35			14			17			88			106			44			53
Amortization of cumulative loss	26			25			8			10			78			74			24			29
Amortization of prior service benefit	—			—			—			(1		)	—			—			(1		)	(3		)
Contractual termination benefits	1			—			4			—			3			(1		)	4			(1		)
Premiums on pension insurance	4			3			—			—			12			8			—			—
Expected return on assets	(41		)	(48		)	(6		)	(7		)	(125		)	(145		)	(19		)	(22		)
Net periodic benefit expense	$	21		$	18		$	21		$	21		$	63		$	51		$	56		$	61