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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2017
Goodwill and Other Intangible Assets  
Schedule of Other Intangible Assets

Our other intangible assets consisted of the following as of December 31 (in millions):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    

Customer

    

Covenants

    

Licenses,

    

 

 

 

 

and Supplier

 

Not-to-

 

Permits

 

 

 

 

    

Relationships

    

Compete

    

and Other

    

 Total

2017

 

 

  

 

 

  

 

 

  

 

 

  

Intangible assets

 

$

880

 

$

48

 

$

124

 

$

1,052

Less: Accumulated amortization

 

 

(422)

 

 

(21)

 

 

(62)

 

 

(505)

 

 

$

458

 

$

27

 

$

62

 

$

547

2016

 

 

  

 

 

  

 

 

  

 

 

  

Intangible assets

 

$

835

 

$

59

 

$

123

 

$

1,017

Less: Accumulated amortization

 

 

(342)

 

 

(31)

 

 

(53)

 

 

(426)

 

 

$

493

 

$

28

 

$

70

 

$

591