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Legal and Environmental Matters	3 Months Ended
Legal and Environmental Matters	Apr. 01, 2018
Loss Contingency [Abstract]
Legal and Environmental Matters	Legal and Environmental Matters We are involved in litigation and claims incidental to our current and prior businesses. We provide accruals for such litigation and claims when payment is probable and reasonably estimable. We cannot estimate the aggregate possible range of loss due to most proceedings being in preliminary stages, with various motions either yet to be submitted or pending, discovery yet to occur and significant factual matters unresolved. In addition, most cases seek an indeterminate amount of damages and many involve multiple parties. Predicting the outcomes of settlement discussions or judicial or arbitral decisions is thus inherently difficult. Based on currently available information, including legal defenses available to us, and given the aforementioned accruals and our insurance coverage, we do not believe that the outcome of these legal and environmental matters will have a material effect on our consolidated financial position or results of operations. We previously described certain legal proceedings in the Company’s Annual Report on Form 10-K filed with the SEC on February 28, 2018. There were no material developments in those legal proceedings during the first quarter of 2018.