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Segment information (Tables) | 12 Months Ended
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Dec. 31, 2020
Segment Reporting [Abstract] |
Schedule of segment results | Segment results are evaluated on the basis of operating income and the information presented below is based on information used for internal management reporting. The change in reportable segments has been reflected retrospectively. Corresponding items of segment information for earlier periods have been recast. The remaining incidental revenues and expenses not included in the reportable segments are included in the "other" reportable segment. The below section splits out total operating revenue, depreciation, amortization of intangibles, operating net loss, drilling units and capital expenditures by segment: Total operating revenue
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Harsh environment | 526 |  |  | 510 |  |  | 150 |  |  |  | 103 |
Floaters | 358 |  |  | 625 |  |  | 273 |  |  |  | 476 |
Jack-up rigs | 157 |  |  | 229 |  |  | 107 |  |  |  | 128 |
Other | 18 |  |  | 24 |  |  | 11 |  |  |  | 5 |
Total | 1,059 |  |  | 1,388 |  |  | 541 |  |  |  | 712 |
Depreciation
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Harsh environment | 93 |  |  | 125 |  |  | 78 |  |  |  | 134 |
Floaters | 176 |  |  | 224 |  |  | 120 |  |  |  | 179 |
Jack-up rigs | 48 |  |  | 48 |  |  | 23 |  |  |  | 58 |
Other | 29 |  |  | 29 |  |  | 15 |  |  |  | 20 |
Total | 346 |  |  | 426 |  |  | 236 |  |  |  | 391 |
Amortization of intangibles
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Harsh environment | 1 |  |  | — |  |  | (13) |  |  |  | — |
Floaters | — |  |  | 105 |  |  | 50 |  |  |  | — |
Jack-ups | — |  |  | 29 |  |  | 21 |  |  |  | — |
Total | 1 |  |  | 134 |  |  | 58 |  |  |  | — |
Impairment of drilling units and intangible assets
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Harsh environment | 419 |  |  | — |  |  | — |  |  |  | 414 |
Floaters | 3,555 |  |  | — |  |  | — |  |  |  | — |
Jack-ups | 86 |  |  | — |  |  | — |  |  |  | — |
Other | 48 |  |  | — |  |  | — |  |  |  | — |
Total | 4,108 |  |  | — |  |  | — |  |  |  | 414 |
Operating net loss
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Harsh environment | (396) |  |  | (69) |  |  | (59) |  |  |  | (562) |
Floaters | (3,781) |  |  | (201) |  |  | (112) |  |  |  | 42 |
Jack-ups | (87) |  |  | (2) |  |  | — |  |  |  | (73) |
Other | (218) |  |  | (23) |  |  | (4) |  |  |  | (20) |
Operating loss | (4,482) |  |  | (295) |  |  | (175) |  |  |  | (613) |
Unallocated items: |  |  |  |  |  |  |  |
Total financial items and other | (176) |  |  | (966) |  |  | (422) |  |  |  | (3,242) |
Loss before income taxes | (4,658) |  |  | (1,261) |  |  | (597) |  |  |  | (3,855) |
Drilling assets - Total assets
(In $ millions) | December 31, 2020 |  | December 31, 2019
Harsh environment rigs | 1,032 |  |  | 1,537 |
Floaters | 528 |  |  | 4,184 |
Jack-up Rigs | 560 |  |  | 680 |
Total Drilling Units | 2,120 |  |  | 6,401 |
Unallocated items: |  |  |
Investments in Associated companies | 248 |  |  | 389 |
Marketable securities | 8 |  |  | 11 |
Cash and restricted cash | 723 |  |  | 1,357 |
Other assets | 862 |  |  | 1,121 |
Total assets | 3,961 |  |  | 9,279 |
Drilling units - Capital expenditures (1)(2)
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Harsh environment | 26 |  |  | 34 |  |  | 7 |  |  |  | 41 |
Floaters | 110 |  |  | 111 |  |  | 72 |  |  |  | 69 |
Jack-ups | 12 |  |  | 17 |  |  | 19 |  |  |  | 6 |
Total | 148 |  |  | 162 |  |  | 98 |  |  |  | 116 |
(1)The successor periods include additions to equipment (2)Capital expenditure includes long term maintenance projects.
Schedule of revenues and fixed assets by geographic area | Geographic segment data Revenues are attributed to geographical segments based on the country of operations for drilling activities, i.e. the country where the revenues are generated. The following presents our revenues and fixed assets by geographic area: Revenues
| Successor |  |  | Predecessor
(In $ millions) | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
Norway | 480 |  |  | 469 |  |  | 117 |  |  |  | 82 |
United States | 107 |  |  | 74 |  |  | 34 |  |  |  | 30 |
Saudi Arabia | 98 |  |  | 130 |  |  | 78 |  |  |  | 79 |
Angola | 89 |  |  | 215 |  |  | 29 |  |  |  | 100 |
Brazil | 51 |  |  | 137 |  |  | 91 |  |  |  | 188 |
Nigeria | — |  |  | 198 |  |  | 108 |  |  |  | 105 |
Others (1) | 234 |  |  | 165 |  |  | 84 |  |  |  | 128 |
Total Revenue | 1,059 |  |  | 1,388 |  |  | 541 |  |  |  | 712 |
(1)Other countries represent countries in which we operate that individually had revenues representing less than 10% of total revenues earned for any of the periods presented. Fixed assets – drilling units (1) Drilling unit fixed assets by geographic area are as follows:
(In $ millions) | December 31, 2020 |  | December 31, 2019
Norway | 1,044 |  |  | 1,818 |
Saudi Arabia | 234 |  |  | 244 |
Malaysia | 185 |  |  | 805 |
Qatar | 151 |  |  | 54 |
USA | 87 |  |  | 644 |
Brazil | 79 |  |  | 332 |
Spain | 49 |  |  | 615 |
Others (2) | 291 |  |  | 1,889 |
Total | 2,120 |  |  | 6,401 |
(1)Asset locations at the end of a period are not necessarily indicative of the geographic distribution of the revenues or operating profits generated by such assets during such period. (2)Other countries represent countries in which we operate that individually had fixed assets representing less than 10% of total fixed assets for any of the periods presented.
Schedule of customer with contract revenues by major customers | In the years e nded December 31, 2020, the year ended December 31, 2019, the period from July 2, 2018 through December 31, 2018 (Successor), and the period from January 1, 2018 through July 1, 2018 (Predecessor), we had the following customers with total revenues greater than 10% in any of the years presented:
|  | Successor |  |  | Predecessor
| Segment | Year ended December 31, 2020 |  | Year ended December 31, 2019 |  | Period from July 2, 2018 through December 31, 2018 |  |  | Period from January 1, 2018 through July 1, 2018
ConocoPhillips | Harsh Environment | 16 | % |  | 11 | % |  | 13 | % |  |  | 8 | %
Equinor | Harsh Environment | 12 | % |  | 16 | % |  | 7 | % |  |  | 5 | %
Northern Ocean | Harsh Environment | 12 | % |  | 12 | % |  | — | % |  |  | — | %
Saudi Aramco | Jack-Ups | 9 | % |  | 10 | % |  | 14 | % |  |  | 11 | %
LLOG | Floaters | 7 | % |  | 4 | % |  | 6 | % |  |  | 4 | %
Petrobras | Floaters | 5 | % |  | 7 | % |  | 10 | % |  |  | 23 | %
Total | Floaters | 4 | % |  | 18 | % |  | 24 | % |  |  | 19 | %
ExxonMobil | Floaters | — |  |  | — | % |  | — | % |  |  | 10 | %
Other |  | 35 | % |  | 22 | % |  | 26 | % |  |  | 20 | %
Total |  | 100 | % |  | 100 | % |  | 100 | % |  |  | 100 | %

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- Definition Tabular disclosure of information concerning material long-lived assets (excluding financial instruments, customer relationships with financial institutions, mortgage and other servicing rights, deferred policy acquisition costs, and deferred taxes assets) located in identified geographic areas and/or the amount of revenue from external customers attributed to that country from which revenue is material. An entity may also provide subtotals of geographic information about groups of countries. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 + Details
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