Financial Instruments - Gains and Losses on Marketable and Non-Marketable Equity Securities (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Fair Value Disclosures [Abstract] | |||
| Gross unrealized gain on non-marketable equity securities accounted for under the measurement alternative | $ 22,666 | $ 5,582 | $ 1,806 |
| Gross unrealized loss (including impairments) on non-marketable equity securities accounted for under the measurement alternative | (1,271) | (2,210) | (2,894) |
| Unrealized net gain (loss) on non-marketable equity securities accounted for under the measurement alternative | 21,395 | 3,372 | (1,088) |
| Unrealized net gain (loss) on marketable and other equity securities | 1,907 | 156 | 790 |
| Realized net gain (loss) on marketable and non-marketable equity securities sold during the period | 778 | 186 | 690 |
| Total gain (loss) on equity securities in other income (expense), net | $ 24,080 | $ 3,714 | $ 392 |