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Earnings Per Share | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The computations of the weighted average shares outstanding for the periods indicated are as follows (in millions):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Basic weighted average shares outstanding | 425.4 |  |  | 424.3 |  |  | 425.2 |  |  | 424.1 |
Dilutive securities (1) | 3.1 |  |  | 1.1 |  |  | 2.7 |  |  | — |
Diluted weighted average shares outstanding | 428.5 |  |  | 425.4 |  |  | 427.9 |  |  | 424.1 |
(1)The nine months ended September 30, 2020 excludes 0.9 million of potentially dilutive share-based awards as their effect would be anti-dilutive. At September 30, 2021 and 2020 potentially dilutive restricted stock awards with performance-based vesting targets that have been met are included in the computation of diluted earnings per share.

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