XML 91 R74.htm IDEA: XBRL DOCUMENT v3.6.0.2
Goodwill and Intangibles (Intangible Assets) (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets $ 764 $ 770
Trade names and trademarks    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 503 503
Refinery air and operating permits    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 260 266
Other    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets $ 1 $ 1