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SHAREHOLDERS' EQUITY - Reconciliation of Number of Shares of Common Stock (Detail) - shares shares in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Common Stock Issued [Roll Forward] |  |
Balance, beginning of period | 1,355,398 | 1,354,079
Exercise of stock options and issuance of restricted shares | 1,082 | 933
Balance, end of period | 1,356,480 | 1,355,012
Treasury Stock [Roll Forward] |  |
Balance, beginning of period | 776,919 | 738,823
Share repurchase program | 9,276 | 10,348
Balance, end of period | 786,202 | 749,060
Shares outstanding, end of period | 570,278 | 605,952
Treasury Stock |  |
Treasury Stock [Roll Forward] |  |
Other purchases | 457 | 347
Shares issued to AFL Stock Plan | (212) | (239)
Exercise of stock options | (55) | (48)
Other dispositions | (183) | (171)

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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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