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Note 7 - Summary of Other Long-term Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2017
Dec. 31, 2016
Summary Of Other Long Term Liabilities [Abstract]    
Workers compensation $ 102 $ 105
Asset retirement obligations 38 38
Deferred taxes 17 16
Deferred consideration on disposed businesses 14 24
Environmental liabilities 12 12
Embedded conversion features derivative liability 1 43
Other 32 30
Total $ 216 $ 268