XML 38 R28.htm IDEA: XBRL DOCUMENT v3.19.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND GENERAL (Stock Option Plan) (Details) - shares
shares in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2019
Dec. 31, 2009
Performance Shares [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of shares available under plan   2.4
Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Maximum term of options   5 years
Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Holding Period 6 months