STOCK-BASED COMPENSATION (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Mar. 31, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] | |||||
| Compensation expense | $ 12 | $ 4 | $ 37 | $ 12 | |
| Income tax benefits | $ 3 | $ 1 | $ 8 | $ 3 | |
| Restricted Stock Units (RSUs) | |||||
| Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] | |||||
| Shares granted (in shares) | 0.1 | 0.3 | |||
| Weighted-average share price (in usd per share) | $ 132.43 | $ 126.70 | |||
| Performance Shares | |||||
| Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] | |||||
| Shares granted (in shares) | 0.1 | ||||
| Weighted-average share price (in usd per share) | $ 191.69 | ||||
| Qnity Electronics, Inc. Equity And Incentive Plan | |||||
| Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] | |||||
| Capital shares reserved for future issuance (in shares) | 16.0 | 16.0 | |||