XML 64 R46.htm IDEA: XBRL DOCUMENT v3.8.0.1
Estimates (Other Current Assets) (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Other Information [Abstract]    
Deposits paid to vendors $ 64 $ 74
Prepaid expenses and other 231 373
Total other current assets $ 295 $ 447 [1]
[1] * As adjusted. See Note 2.