XML 96 R67.htm IDEA: XBRL DOCUMENT v3.10.0.1
Earnings Per Share - Narrative (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Earnings Per Share [Abstract]      
Antidilutive securities (in shares) 2 3 3