Details to the consolidated statements of cash flows (Details 4) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Statement [line items] | |||||
| Acquisitions applying the optional concentration test | $ 2,720 | $ 1,537 | $ 2,720 | $ 1,537 | |
| Cash and cash equivalents recognised as of acquisition date through acquisitions applying the optional concentration test | $ 300 | ||||
| Cash acquired recognized as of acquisition date through acquisitions applying the optional concentration test | $ 0 | $ 0 | |||