Employee Benefit Plans (Fair Value Of Assets Held By U.S. Pension Plans By Asset Category) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	$ 93,300	$ 102,300	$ 105,800	$ 87,300
Significant Unobservable Inputs (Level 3) [Member] | Global Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	21,100	19,400	19,400	17,900
Significant Unobservable Inputs (Level 3) [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	58,700	60,800	55,000	31,400
Significant Unobservable Inputs (Level 3) [Member] | Real Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	13,500	22,100	31,400	38,000
U.S. Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	336,200	317,200	274,200
U.S. Assets [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	14,200	18,500	900
U.S. Assets [Member] | Global Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	215,700	152,100	138,200
U.S. Assets [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	85,700	124,500	103,700
U.S. Assets [Member] | Real Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	20,600	22,100	31,400
U.S. Assets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	155,600	143,900	91,600
U.S. Assets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	14,200	18,500	900
U.S. Assets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Global Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	107,300	82,500	61,500
U.S. Assets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	27,000	42,900	29,200
U.S. Assets [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Real Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	7,100
U.S. Assets [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	87,300	71,000	76,800
U.S. Assets [Member] | Significant Other Observable Inputs (Level 2) [Member] | Global Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	87,300	50,200	57,300
U.S. Assets [Member] | Significant Other Observable Inputs (Level 2) [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets		20,800	19,500
U.S. Assets [Member] | Significant Unobservable Inputs (Level 3) [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	93,300	102,300	105,800
U.S. Assets [Member] | Significant Unobservable Inputs (Level 3) [Member] | Global Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	21,100	19,400	19,400
U.S. Assets [Member] | Significant Unobservable Inputs (Level 3) [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	58,700	60,800	55,000
U.S. Assets [Member] | Significant Unobservable Inputs (Level 3) [Member] | Real Assets [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, fair value of plan assets	$ 13,500	$ 22,100	$ 31,400