XML 96 R68.htm IDEA: XBRL DOCUMENT v3.20.2
Earnings Per Share (Anti-dilutive Shares) (Details) - shares
shares in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Stock Based Compensation Expense [Member]        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Shares issuable under stock-based compensation plans 9 4 11 3