(Tables)

3 Months Ended

Jan. 31, 2016

Compensation and Retirement Disclosure [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

	Three Months Ended January 31,
	Pension Benefits						Health and Life Insurance Benefits
(in millions)	2016			2015			2016			2015
Service cost for benefits earned during the period	$	2		$	3		$	1		$	1
Interest on obligation	30			36			15			18
Amortization of cumulative loss	26			25			8			10
Amortization of prior service benefit	—			—			—			(1		)
Premiums on pension insurance	4			1			—			—
Expected return on assets	(42		)	(49		)	(6		)	(7		)
Net periodic benefit expense	$	20		$	16		$	18		$	21