Employee Benefit Plans (Fair Value Of Assets Held By U.S. Pension Plans By Asset Category) (Details) - USD ($) $ in Millions | Jul. 31, 2016 | Jul. 31, 2015 | Jul. 31, 2014 | Jul. 31, 2013 |
Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | $ 72.3 | $ 87.2 | $ 93.3 | $ 102.3 |
U S Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 296.9 | 321.3 | 336.2 | |
U S Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 141.5 | 85.4 | 155.6 | |
U S Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 83.1 | 148.7 | 87.3 | |
U S Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 72.3 | 87.2 | 93.3 | |
International Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 158.6 | 157.2 | 153.6 | |
International Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 91 | 93.1 | 99.8 | |
International Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 35.8 | 35.9 | 23.3 | |
International Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 31.8 | 28.2 | 30.5 | |
Change In Plan Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 455.5 | 478.5 | 489.9 | |
Real Estate | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7.9 | 13 | 13.5 | 22.1 |
Real Estate | U S Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 13.8 | 19 | 20.6 | |
Real Estate | U S Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 5.9 | 6 | 7.1 | |
Real Estate | U S Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Real Estate | U S Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7.9 | 13 | 13.5 | |
Fixed Income Securities | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 47.3 | 54.7 | 58.7 | 60.8 |
Fixed Income Securities | U S Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 119.5 | 119.7 | 85.7 | |
Fixed Income Securities | U S Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 72.2 | 0.9 | 27 | |
Fixed Income Securities | U S Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 64.1 | 0 | |
Fixed Income Securities | U S Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 47.3 | 54.7 | 58.7 | |
Fixed Income Securities | International Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 40.4 | 40.1 | 28.1 | |
Fixed Income Securities | International Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 4.6 | 4.2 | 4.8 | |
Fixed Income Securities | International Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 35.8 | 35.9 | 23.3 | |
Fixed Income Securities | International Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Equity Securities | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 17.1 | 19.5 | 21.1 | 19.4 |
Equity Securities | U S Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 162.4 | 180.7 | 215.7 | |
Equity Securities | U S Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 62.2 | 76.6 | 107.3 | |
Equity Securities | U S Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 83.1 | 84.6 | 87.3 | |
Equity Securities | U S Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 17.1 | 19.5 | 21.1 | |
Equity Securities | International Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 69.2 | 71.7 | 71.3 | |
Equity Securities | International Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 69.2 | 71.7 | 71.3 | |
Equity Securities | International Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Equity Securities | International Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Cash and Cash Equivalents | U S Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 1.2 | 1.9 | 14.2 | |
Cash and Cash Equivalents | U S Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 1.2 | 1.9 | 14.2 | |
Cash and Cash Equivalents | U S Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Cash and Cash Equivalents | U S Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Cash and Cash Equivalents | International Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0.5 | | 5.7 | |
Cash and Cash Equivalents | International Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0.5 | | 5.7 | |
Cash and Cash Equivalents | International Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | |
Cash and Cash Equivalents | International Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | |
Equity Fixed Income | International Assets | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 48.5 | 45.4 | 48.5 | |
Equity Fixed Income | International Assets | Fair Value, Inputs, Level 1 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 16.7 | 17.2 | 18 | |
Equity Fixed Income | International Assets | Fair Value, Inputs, Level 2 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | 0 | |
Equity Fixed Income | International Assets | Fair Value, Inputs, Level 3 | | | | |
Defined Benefit Plan Disclosure [Line Items] | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | $ 31.8 | $ 28.2 | $ 30.5 | $ 26.3 |