Transocean Ltd. Segments Disclosure
Note 15—Supplemental Segment information
Our Chief Executive Officer serves as our chief operating decision maker (“CODM”) and assesses performance for and allocates resources for our contract drilling services segment based on our consolidated net income or loss, as presented on our consolidated statements of operations. The significant segment expense categories regularly provided to our CODM include our operating and maintenance costs and our general and administrative costs, as presented on our consolidated statements of operations. Other segment items included in our consolidated net income or loss include depreciation and amortization, loss on impairment of assets, gain or loss on disposal of assets, interest expense and income tax expense or benefit. Additionally, our CODM reviews our segment assets, as presented on our consolidated balance sheets.
Our CODM uses our consolidated results of operations to evaluate income or loss generated from segment assets, or return on assets, to make decisions to deploy cash flows from operations for reinvestment in our contract drilling services segment or for other uses, such as for acquisitions, debt and equity investments, liability management or to pay dividends to our shareholders. Consolidated results of operations are used to monitor actual results relative to historical, budgeted and forecasted results and to assess segment performance against our peers.
Historical Timeline
| Fiscal Year | Filed | |
|---|---|---|
| 2025 | Feb 23, 2026 | Showing above |
| 2024 | Feb 18, 2025 | |
| 2020 | Mar 1, 2021 | |
| 2019 | Feb 18, 2020 | |
| 2018 | Feb 19, 2019 | |
| 2017 | Feb 21, 2018 | |
| 2016 | Mar 7, 2017 | |
| 2015 | Feb 25, 2016 | |
About Segments Disclosures
Segment disclosures break a company into its reportable operating units, revealing revenue, profit, and asset allocation that consolidated financial statements obscure. Under ASC 280, segments must match how the chief operating decision maker views the business, providing a window into internal management structure and resource allocation priorities.
Key signals: compare segment margins to identify which units drive profitability and which destroy value. Watch for changes in the number of reportable segments — segment aggregation or disaggregation often coincides with strategic shifts or attempts to obscure declining performance. Intersegment elimination patterns reveal internal pricing practices. The reconciliation between segment totals and consolidated figures exposes corporate overhead allocation and unallocated items. Geographic revenue concentration highlights regulatory and currency exposure. Compare segment-level capital expenditure against segment revenue to assess where management is investing for future growth versus harvesting existing assets.