Goodwill - Additional Information (Detail) - USD ($)	3 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2015
Goodwill [Line Items]
Goodwill impairment loss	$ 0	$ 0	$ 138,000,000	$ 255,000,000	$ 393,000,000
Goodwill	328,000,000	311,000,000	205,000,000		205,000,000
Tax benefit reported for goodwill impairment			0		0
International [Member]
Goodwill [Line Items]
Goodwill impairment loss					0
Goodwill	$ 111,000,000	103,000,000	$ 117,000,000		$ 117,000,000
U.S. Energy [Member]
Goodwill [Line Items]
Goodwill		0
U.S. Process Solutions [Member]
Goodwill [Line Items]
Goodwill		$ 119,000,000