Revenue Recognition and Accounts Receivable (Narrative) (Details) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Revenue Recognition And Accounts Receivable [Line Items]
Sales allowances, current	$ 918,400,000	$ 977,000,000
Accrued sales allowances and other adjustments	187,803,000	202,891,000
Securitized accounts receivable	455,700,000	556,500,000
Receivables Facility
Revenue Recognition And Accounts Receivable [Line Items]
Receivables Facility maximum borrowing capacity	$ 400,000,000