Consolidated Statement of Equity - Shares - shares shares in Millions |
Total |
Common Stock |
Treasury Stock |
|---|---|---|---|
| Number of common shares issued (beginning balance) at Dec. 31, 2016 | 731 | ||
| Number of common shares issued (ending balance) at Mar. 31, 2017 | 731 | ||
| Number of shares held in treasury (beginning balance) at Dec. 31, 2016 | (203) | ||
| Number of shares repurchased | (9) | (9) | |
| Number of shares held in treasury (ending balance) at Mar. 31, 2017 | (212) | ||
| Number of common shares issued (beginning balance) at Dec. 31, 2017 | 734 | 734 | |
| Number of common shares issued (ending balance) at Mar. 31, 2018 | 734 | 734 | |
| Number of shares held in treasury (beginning balance) at Dec. 31, 2017 | (248) | (248) | |
| Number of shares repurchased | (19) | (19) | |
| Number of shares held in treasury (ending balance) at Mar. 31, 2018 | (267) | (267) |