Pension And Postretirement Benefits (Narrative) (Details) $ in Millions	6 Months Ended
Jan. 31, 2016 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension contributions, remainder of current fiscal year	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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