INVESTMENTS - Carrying Value of Non-marketable Equity Securities Measured Using the Measurement Alternative (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
|
| Equity Securities without Readily Determinable Fair Value, Annual Amount [Abstract] | |||
| Measurement alternative—carrying value | $ 1,738 | $ 1,707 | |
| Measurement alternative—impairment losses | 23 | $ 52 | |
| Measurement alternative—downward changes for observable prices | 0 | 0 | |
| Measurement alternative—upward changes for observable prices | 38 | $ 9 | |
| Equity Securities without Readily Determinable Fair Value, Impairment Loss, Cumulative Amount [Abstract] | |||
| Measurement alternative—impairment losses | 517 | ||
| Measurement alternative—downward changes for observable prices | 24 | ||
| Measurement alternative—upward changes for observable prices | $ 840 | ||