Business Segments (Tables)

3 Months Ended

Mar. 31, 2020

Segment Reporting [Abstract]

Summary of Operating Results by Reportable Segment

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

	Three Months Ended March 31,
	2020			2019
Revenue:
United States	$	441		$	600
Canada		78			86
International		85			99
Total revenue	$	604		$	785
Operating profit (loss):
United States	$	(204	)	$	19
Canada		(58	)		2
International		(71	)		2
Total operating profit (loss)	$	(333	)	$	23