XML 53 R30.htm IDEA: XBRL DOCUMENT v3.8.0.1
Earnings Per Share, Narrative (Details) - shares
shares in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Earnings per share, Other disclosures        
Antidilutive securities 3 3 4 3