(US$ m) | Q4 2019 | Q3 2019 | Q2 2019 | Q1 2019 | Q4 2018 | FY 2019 | FY 2018 |
Net cash from operating activities | 775 | 429 | 324 | 341 | 656 | 1,869 | 1,845 |
Net cash used in investing activities | (314) | (59) | (391) | (408) | (284) | (1,172) | (1,212) |
Payment for purchase and proceeds from matured marketable securities, and investment in short-term deposits | - |
(200) |
- | - | (9) | (200) | (100) |
Free cash flow | 461 | 170 | (67) | (67) | 363 | 497 | 533 |