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Note 7 - Other Long-term Liabilities (Tables)
12 Months Ended
Dec. 31, 2015
Disclosure Text Block Supplement [Abstract]  
Other Long-term Liabilities [Table Text Block]

 

 

 

As of December 31,

 

(in millions)

 

2015

 

 

2014

 

Workers compensation

 

$

113

 

 

$

123

 

Environmental liabilities

 

 

13

 

 

 

19

 

Asset retirement obligations

 

 

47

 

 

 

53

 

Other

 

 

104

 

 

 

127

 

Total

 

$

277

 

 

$

322