CONTRACT AND OTHER DEFERRED ASSETS, CONTRACT LIABILITIES AND DEFERRED INCOME & PROGRESS COLLECTIONS - Narrative (Details) - USD ($) $ in Millions |
9 Months Ended | |
|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Capitalized Contract Cost [Line Items] | ||
| Contract assets (liabilities) and other deferred assets (income), decrease net liability position | $ 164 | |
| Decrease in noncurrent deferred income | 89 | |
| Increase (decrease) in customer advances and other | 78 | |
| Revenue recognized, contract liability | 7,229 | $ 5,884 |
| Increase in progress collections and deferred income due to timing of revenue recognition | 540 | |
| Long-term service agreements | ||
| Capitalized Contract Cost [Line Items] | ||
| Revenues recognized, contract asset | 8,437 | |
| Increase (decrease) due to billings | 8,291 | |
| Net favorable (unfavorable) change in estimated profitability | $ (60) | |
| Reversal of tariff-related charge | $ 139 | |