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INCOME PER COMMON SHARE - Reconciliations of the Numerators and Denominators Used in the Computations of Basic and Diluted Earnings per Common Share (Details) - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Numerator (basic and diluted): |  |  |  |
Net income | $ 258 | $ 263 | $ 473 | $ 468
Less: Allocation to unvested restricted stock awards | 0 | 0 | 0 | 0
Net income attributable to common shareholders | $ 258 | $ 263 | $ 473 | $ 468
Denominator: |  |  |  |
Basic common shares (based upon weighted average) (in shares) | 219 | 225 | 220 | 226
Add: Dilutive effect of stock options and other stock-based incentives (in shares) | 0 | 1 | 1 | 0
Diluted common shares (in shares) | 220 | 226 | 221 | 226

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