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Consolidated Balance Sheet (Parenthetical) (USD $)
Dec. 31, 2014
Jun. 30, 2014
Serial preferred stock, par value $ 0.50us-gaap_PreferredStockParOrStatedValuePerShare $ 0.50us-gaap_PreferredStockParOrStatedValuePerShare
Serial preferred stock, authorized 3,000,000us-gaap_PreferredStockSharesAuthorized 3,000,000us-gaap_PreferredStockSharesAuthorized
Serial preferred stock, issued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Common stock, par value $ 0.50us-gaap_CommonStockParOrStatedValuePerShare $ 0.50us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized 600,000,000us-gaap_CommonStockSharesAuthorized 600,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued 181,046,128us-gaap_CommonStockSharesIssued 181,046,128us-gaap_CommonStockSharesIssued
Treasury shares, shares 38,590,777us-gaap_TreasuryStockShares 32,143,315us-gaap_TreasuryStockShares