Litigation	12 Months Ended
Dec. 31, 2017
Litigation [Abstract]
Litigation	10 Litigation From time to time, the Company and its subsidiaries are involved in various litigation matters arising in the ordinary course of business. The Company believes it has meritorious arguments in its current litigation matters and believes any outcome, either individually or in the aggregate, will not be material to the Company’s financial position, results of operations or cash flows. During 2017, 2016 and 2015, the Company recorded $11 million, $4 million and $4 million of litigation settlement provisions and related costs, respectively. The accrued patent litigation expense is in other current liabilities in the consolidated balance sheets at December 31, 2017 and 2016.

Litigation

12 Months Ended

Dec. 31, 2017

10 Litigation

From time to time, the Company and its subsidiaries are involved in various litigation matters arising in the ordinary course of business. The Company believes it has meritorious arguments in its current litigation matters and believes any outcome, either individually or in the aggregate, will not be material to the Company’s financial position, results of operations or cash flows. During 2017, 2016 and 2015, the Company recorded $11 million, $4 million and $4 million of litigation settlement provisions and related costs, respectively. The accrued patent litigation expense is in other current liabilities in the consolidated balance sheets at December 31, 2017 and 2016.