XML 61 R49.htm IDEA: XBRL DOCUMENT v3.19.2
GENERAL Redeemable Non-Controlling Interest (Details) - Ethiopia Joint Venture [Member]
May 05, 2019
Non-controlling Interest [Line Items]  
Non-controlling Interest, Ownership Percentage by Parent 75.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 25.00%