Other Non-Current Assets (Tables)
|6 Months Ended|
Jun. 30, 2018
|Other Assets, Noncurrent [Abstract]|
|Schedule of Other Non-Current Assets||
As of June 30, 2018 and December 31, 2017, other non-current assets, net consisted of the following (in millions):
Tabular disclosure of noncurrent assets.
Reference 1: http://www.xbrl.org/2003/role/presentationRef