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Investments in Unconsolidated Affiliated Companies
3 Months Ended
Mar. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]  
Investments in Unconsolidated Affiliated Companies
     Investments in unconsolidated affiliated companies
 
Investments in unconsolidated affiliated companies, included in Other assets in the Consolidated Statement of Financial Position, were as follows:
 
 
 
 
(Millions of dollars)
March 31,
2017
 
December 31,
2016
Investments in equity method companies
$
193

 
$
192

Plus: Investments in cost method companies
37

 
57

Total investments in unconsolidated affiliated companies
$
230

 
$
249