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Business Segments (Tables)
3 Months Ended
Mar. 31, 2018
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,

 

 

2018

 

 

2017

 

Revenue:

 

 

 

 

 

 

 

United States

$

562

 

 

$

439

 

Canada

 

102

 

 

 

96

 

International

 

100

 

 

 

96

 

Total revenue

$

764

 

 

$

631

 

Operating profit (loss):

 

 

 

 

 

 

 

United States

$

3

 

 

$

(26

)

Canada

 

4

 

 

 

3

 

International

 

 

 

 

2

 

Total operating profit (loss)

$

7

 

 

$

(21

)

Operating profit (loss) % of revenue:

 

 

 

 

 

 

 

United States

 

0.5

%

 

 

(5.9

%)

Canada

 

3.9

%

 

 

3.1

%

International

 

0.0

%

 

 

2.1

%

Total operating profit (loss) %

 

0.9

%

 

 

(3.3

%)