Earnings (Loss) Per Common Share - Earnings Per Share Basic and Diluted (Details) - shares shares in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
|
| Earnings (loss) per common share | ||||
| Antidilutive securities | 27 | 28 | 27 | 28 |
| Basic WASO | 428 | 467 | 431 | 472 |
| Potentially dilutive shares | 4 | 4 | ||
| Diluted WASO | 428 | 471 | 431 | 476 |
| Liberty Ventures common stock | ||||
| Earnings (loss) per common share | ||||
| Antidilutive securities | 0 | 2 | ||
| Basic WASO | 86 | |||
| Potentially dilutive shares | 1 | |||
| Diluted WASO | 87 | |||