XML 37 R24.htm IDEA: XBRL DOCUMENT v3.21.2
Per Common Share Information (Additional Information) (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Earnings Per Share [Abstract]        
Dilutive effect of share-based compensation 5.5 4.8 5.4 5.3
Stock options that were not included in diluted weighted-average shares 3.0 2.8 3.0 2.8