Accounts Receivable Securitization Programs	3 Months Ended
Accounts Receivable Securitization Programs	Mar. 31, 2018
Transfers and Servicing [Abstract]
Accounts Receivable Securitization Programs	Accounts Receivable Securitization Programs U.S. Accounts Receivable Securitization Program We and a group of our U.S. operating subsidiaries maintain an accounts receivable securitization program under which we sell eligible U.S. accounts receivable to an indirectly wholly-owned subsidiary that was formed for the sole purpose of entering into this program. The wholly-owned subsidiary in turn may sell an undivided fractional ownership interest in these receivables to two banks and issuers of commercial paper administered by these banks. The wholly-owned subsidiary retains the receivables it purchases from the operating subsidiaries. Any transfers of fractional ownership interests of receivables under the U.S. receivables securitization program to the two banks and issuers of commercial paper administered by these banks are considered secured borrowings with pledge of collateral and are classified as short-term borrowings on our Condensed Consolidated Balance Sheets. These banks do not have any recourse against the general credit of the Company. The net trade receivables that served as collateral for these borrowings are reclassified from trade receivables, net to prepaid expenses and other current assets on the Condensed Consolidated Balance Sheets. As of March 31, 2018, the maximum purchase limit for receivable interests was $60.0 million, subject to the availability limits described below. The amounts available from time to time under this program may be less than $60.0 million due to a number of factors, including but not limited to our credit ratings, trade receivable balances, the creditworthiness of our customers and our receivables collection experience. As of March 31, 2018, the level of eligible assets available under the program equaled $60.0 million. Although we do not believe restrictions under this program presently materially restrict our operations, if an additional event occurs that triggers one of these restrictive provisions, we could experience a decline in the amounts available to us under the program or termination of the program. This program expires annually in August and is renewable. European Accounts Receivables Securitization Program We and a group of our European subsidiaries maintain an accounts receivable securitization program with a special purpose vehicle, or SPV, two banks and issuers of commercial paper administered by these banks. The European program is structured to be a securitization of certain trade receivables that are originated by certain of our European subsidiaries. The SPV borrows funds from the banks to fund its acquisition of the receivables and provides the banks with a first priority perfected security interest in the accounts receivable. We do not have an equity interest in the SPV. We concluded the SPV is a variable interest entity because its total equity investment at risk is not sufficient to permit the SPV to finance its activities without additional subordinated financial support from the bank via loans or via the collections from accounts receivable already purchased. Additionally, we are considered the primary beneficiary of the SPV since we control the activities of the SPV, and are exposed to the risk of uncollectable receivables held by the SPV. Therefore, the SPV is consolidated in our Condensed Consolidated Financial Statements. Any activity between the participating subsidiaries and the SPV is eliminated in consolidation. Loans from the banks to the SPV are classified as short-term borrowings on our Condensed Consolidated Balance Sheets. The net trade receivables that served as collateral for these borrowings are reclassified from trade receivables, net to prepaid expenses and other current assets on the Condensed Consolidated Balance Sheets. As of March 31, 2018, the maximum purchase limit for receivable interests was €80.0 million ($98.4 million equivalent at March 31, 2018), subject to availability limits. The terms and provisions of this program are similar to our U.S. program discussed above. As of March 31, 2018, the amount available under this program was €75.4 million ($92.7 million equivalent as of March 31, 2018). This program expires annually in August and is renewable. Utilization of Our Accounts Receivable Securitization Programs As of March 31, 2018, there were no amounts outstanding under our U.S. program and €74.4 million ($91.4 million equivalent as of March 31, 2018) outstanding under our European program. We continue to service the trade receivables supporting the programs, and the banks are permitted to re-pledge this collateral. The total interest paid for these programs was immaterial for the three months ended March 31, 2018 and 2017. Under limited circumstances, the banks and the issuers of commercial paper can end purchases of receivables interests before the above expiration dates. A failure to comply with debt leverage or various other ratios related to our receivables collection experience could result in termination of the receivables programs. We were in compliance with these ratios at March 31, 2018. As of December 31, 2017, there were no amounts outstanding under our U.S. and European programs.

The entire disclosure for a transferor's continuing involvement in financial assets that it has transferred in a securitization or asset-backed financing arrangement, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), how servicing assets and servicing liabilities are reported, and (for securitization or asset-backed financing arrangements accounted for as sales) when a transferor has continuing involvement with the transferred financial assets and transfers of financial assets accounted for as secured borrowings, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows.