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PREFERRED AND COMMON STOCKHOLDERS' EQUITY - Schedule of Shares of Common Stock Issued and Outstanding (Details) - shares shares in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning common stock issued (in shares) | 81.2 | 80.0 | 75.4
Beginning common stock outstanding (in shares) | 81.2 | 80.0 | 75.4
Common stock issued upon exercise of options, vesting of restricted stock units, and purchases under employee stock purchase plans (in shares) | 1.3 | 1.2 | 4.6
Common stock issued for public offering (in shares) | 7.4 | 0.0 | 0.0
Ending common stock issued (in shares) | 89.9 | 81.2 | 80.0
Ending common stock outstanding (in shares) | 89.9 | 81.2 | 80.0

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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