XML 110 R88.htm IDEA: XBRL DOCUMENT v3.10.0.1
CASH AND CASH EQUIVALENTS (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Cash and cash equivalents [abstract]        
Cash $ 294 $ 258    
Cash equivalents 150 83    
Restricted cash 96 33    
Total cash and cash equivalents $ 540 $ 374 $ 786 $ 199