LEASES - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Leases [Abstract] | |||
| Purchase of fleet equipment under operating leases | $ 281 | ||
| Operating lease, right of use assets, amount derecognized | 155 | ||
| Operating lease liabilities, amount derecognized | 156 | ||
| Purchase of fleet equipment under finance leases | 118 | ||
| Finance lease assets, amount derecognized | 111 | ||
| Finance lease, liabilities, amount derecognized | 114 | ||
| Gain on sale of properties and other assets | $ 1 | 20 | $ 10 |
| Financing obligations in connection with sales leaseback transactions | 31 | 34 | |
| Financing obligations that failed to meet criteria for sales leaseback transactions | 39 | 56 | |
| Build to suit lease arrangements | 22 | 30 | |
| Sales leaseback transactions, financial obligations derecognized | 5 | 36 | |
| Payments on financing obligations | $ 19 | $ 67 | $ 24 |