| (in millions US$) | | December 31, 2017 | | December 31, 2016 | | ||
| United States of America | | | 612 | | | 591 | |
| Other O.E.C.D. | | | - | | | 409 | |
| Multilateral | | | - | | | - | |
| Latin America | | | 7 | | | 8 | |
| Total | | | 619 | | | 1,008 | |