Business Segments

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Business Segments

7. Business Segments

Operating results by reportable segment are as follows (in millions):  

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Revenue:
United States	$	600		$	481		$	1,162		$	920
Canada		75			79			177			175
International		102			91			202			187
Total revenue	$	777		$	651		$	1,541		$	1,282
Operating profit (loss):
United States	$	16		$	(16	)	$	19		$	(42	)
Canada		1			2			5			5
International		1			—			1			2
Total operating profit (loss)	$	18		$	(14	)	$	25		$	(35	)
Operating profit (loss) % of revenue:
United States		2.7	%		(3.3	%)		1.6	%		(4.6	%)
Canada		1.3	%		2.5	%		2.8	%		2.9	%
International		1.0	%		0.0	%		0.5	%		1.1	%
Total operating profit (loss) %		2.3	%		(2.2	%)		1.6	%		(2.7	%)