Equity Investments (Tables)

12 Months Ended

Dec. 31, 2017

Equity Investments [Abstract]

Schedule of Financial Information Related to Unconsolidated Entities-Balance Sheet

	December 31, 2016
Current assets	$	54
Noncurrent assets		112
Total assets	$	166
Current liabilities	$	17
Noncurrent liabilities		2
Members’ equity		147
Total liabilities and equity	$	166

Schedule of Financial Information Related to Unconsolidated Entities Included in Consolidated Statement of Income

	Year Ended December 31,
	2016		2015
Revenues	$	731	$	1,494
Operating costs and expenses		602		1,287
Income from continuing operations before taxes		129		207