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EARNINGS (LOSS) PER SHARE | 12 Months Ended
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Dec. 31, 2022
Earnings Per Share [Abstract] |
EARNINGS (LOSS) PER SHARE |
EARNINGS (LOSS) PER SHARE
The numerator for both basic and diluted earnings (loss) per share (EPS) is net income (loss) attributable to Baxter stockholders. The denominator for basic EPS is the weighted-average number of shares outstanding during the period. The dilutive effect of outstanding stock options, RSUs and PSUs is reflected in the denominator for diluted EPS using the treasury stock method. The following table is a reconciliation of basic shares to diluted shares.
years ended December 31(in millions) | 2022 | 2021 | 2020
Basic shares | 504 |  | 502 |  | 509 |
Effect of dilutive securities | — |  | 6 |  | 8 |
Diluted shares | 504 |  | 508 |  | 517 |
Basic and diluted shares are the same for the year ended December 31, 2022 due to our net loss for the period. The effect of dilutive securities for the years ended December 31, 2021 and 2020, included unexercised stock options, unvested RSUs and contingently issuable shares related to granted PSUs. The computation of diluted EPS excluded 22 million, 7 million, and 4 million equity awards in 2022, 2021, and 2020, respectively, because their inclusion would have had an anti-dilutive effect on diluted EPS. Refer to Note 8 for additional information regarding items impacting basic shares.

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