Employee Benefits (Narrative) (Details) - USD ($)	3 Months Ended
	Jan. 31, 2019	Jan. 31, 2018
Retirement Benefits, Description [Abstract]
Defined benefit plan, contributions by employer		$ 0
Defined benefit plan, estimated future employer contributions in current fiscal year	$ 10,000,000
Expected rate of return on plan assets for determining net periodic pension cost	8.00%