XML 122 R59.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
EARNINGS PER COMMON SHARE - ADDITIONAL INFORMATION (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Earnings Per Share [Abstract]      
Antidilutive common stock options not included in the computation of diluted earnings per common share (in dollars per share) 3.1 5.1 4.3