Earnings Per Share - Narrative (Details) - Common Class A shares in Millions |
6 Months Ended | |
---|---|---|
Jun. 30, 2020 |
Jun. 30, 2019
shares
|
|
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Conversion ratio | 1 | |
Employee stock option | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Antidilutive securities excluded from diluted EPS calculation (in options) | 6 |