Revenue Recognition and Accounts Receivable (Narrative) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Revenue Recognition And Accounts Receivable [Line Items]
Sales allowances, current	$ 1,350,000,000	$ 1,240,000,000
Accrued sales allowances and other adjustments	308,300,000	281,100,000
Securitized accounts receivable	517,400,000	723,100,000
Receivables Facility
Revenue Recognition And Accounts Receivable [Line Items]
Accounts receivable securitization facility maximum borrowing capacity	$ 400,000,000