XML 60 R106.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Earnings Per Share - Narrative (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Earnings Per Share [Abstract]      
Dilutive stock options excluded from computation of diluted earnings per share (shares) 54,828    
Stock excluded from computation of diluted earnings per share (shares) 573,920,000 455,515,000 44,837,000