CONSOLIDATED BALANCE SHEET (PARENTHETICAL) UNAUDITED (Parentheticals) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Parenthetical Balance Sheet [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 221,736	$ 201,875
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	361,246	332,684
Finite-Lived Intangible Assets, Accumulated Amortization	$ 270,446	$ 257,283
Preferred Stock, No Par Value	$ 0	$ 0
Preferred Stock, Shares Authorized	1,000,000	1,000,000
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common Stock, Par or Stated Value Per Share	$ 1	$ 1
Common Stock, Shares Authorized	200,000,000	200,000,000
Common Stock, Shares, Issued	138,864,312	138,425,862
Treasury Stock, Shares	41,975,706	39,997,930