PART I. FINANCIAL INFORMATION

Note 1—Business

Overview —Transocean Ltd. (together with its subsidiaries and predecessors, unless the context requires otherwise, “Transocean,” “we,” “us” or “our”) is a leading international provider of offshore contract drilling services for oil and gas wells.  We specialize in technically demanding sectors of the offshore drilling business with a particular focus on ultra‑deepwater and harsh environment drilling services.  Our mobile offshore drilling fleet is considered one of the most versatile fleets in the world.  We contract our drilling rigs, related equipment and work crews predominantly on a dayrate basis to drill oil and gas wells.  As of June 30, 2018, we owned or had partial ownership interests in and operated 43 mobile offshore drilling units, including 24 ultra‑deepwater floaters, 12 harsh environment floaters, two deepwater floaters and five midwater floaters.  As of June 30, 2018, we were constructing (i) two additional ultra‑deepwater drillships and (ii) one harsh environment semisubmersible, in which we hold a partial ownership interest.  We also operate one high‑specification jackup that was under a drilling contract when the rig was sold, and we continue to operate the rig until completion or novation of the drilling contract.  See Note 6—Drilling Fleet.

Business combination —On January 30, 2018, we acquired an approximate 97.7 percent ownership interest in Songa Offshore SE, a European public company limited by shares, or societas Europaea, existing under the laws of Cyprus (“Songa”).  On March 28, 2018, we acquired the remaining shares not owned by us through a compulsory acquisition under Cyprus law, and as a result, Songa became our wholly owned subsidiary.  In connection with these transactions, we issued an aggregate of 68.0 million shares and $863 million aggregate principal amount of 0.50% exchangeable senior bonds due January 30, 2023 (the “Exchangeable Bonds”).  As a result of the acquisition, we acquired seven mobile offshore drilling units, including five harsh environment floaters and two midwater floaters.  See Note 4—Business Combination.

Investment in unconsolidated affiliates —In the six months ended June 30, 2018, we made an aggregate cash investment of $106 million in unconsolidated affiliates.  This included an initial investment of $91 million, representing a 33.0 percent interest, in Orion Holdings (Cayman) Limited, a Cayman Islands company formed to construct and own a newbuild harsh environment semisubmersible, recently renamed Transocean Norge.  The total purchase price for the rig, under construction at the Jurong Shipyard Pte Ltd. in Singapore, is $500 million.  We expect to make additional investments of $50  million and $33 million in January 2019 and January 2020, respectively.  The rig is expected to be delivered in the first quarter of 2019.  We account for this investment, recorded in other assets, using the equity method of accounting.  Additionally, we invested $15 million in a company involved in researching and developing technology to improve automation in drilling and other activities.  We account for this investment, recorded in other assets, using the cost method of accounting.

Note 2—Significant Accounting Policies

Presentation —We have prepared our accompanying unaudited condensed consolidated financial statements in accordance with accounting principles generally accepted in the United States (“U.S.”) for interim financial information and with the instructions to Form 10‑Q and Article 10 of Regulation S‑X of the U.S. Securities and Exchange Commission (“SEC”).  Pursuant to such rules and regulations, these financial statements do not include all disclosures required by accounting principles generally accepted in the U.S. for complete financial statements.  The condensed consolidated financial statements reflect all adjustments, which are, in the opinion of management, necessary for a fair presentation of financial position, results of operations and cash flows for the interim periods.  Such adjustments are considered to be of a normal recurring nature unless otherwise noted.  Operating results for the three and six months ended June 30, 2018, are not necessarily indicative of the results that may be expected for the year ending December 31, 2018, or for any future period.  The accompanying condensed consolidated financial statements and notes thereto should be read in conjunction with the audited consolidated financial statements and notes thereto as of December 31, 2017 and 2016, and for each of the three years in the period ended December 31, 2017, included in our annual report on Form 10‑K filed on February 21, 2018.

Accounting estimates —To prepare financial statements in accordance with accounting principles generally accepted in the U.S., we are required to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosures of contingent assets and liabilities.  On an ongoing basis, we evaluate our estimates and assumptions, including those related to our allowance for doubtful accounts, materials and supplies obsolescence, property and equipment, assets held for sale, goodwill, income taxes, contingencies, share‑based compensation and postemployment benefit plans.  We base our estimates and assumptions on historical experience and on various other factors we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying amounts of assets and liabilities that are not readily apparent from other sources.  Actual results could differ from such estimates.

Fair value measurements —We estimate fair value at a price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market for the asset or liability.  Our valuation techniques require inputs that we categorize using a three‑level hierarchy, from highest to lowest level of observable inputs, as follows: (1) significant observable inputs, including unadjusted quoted prices for identical assets or liabilities in active markets (“Level 1”), (2) significant other observable inputs, including direct or indirect market data for similar assets or liabilities in active markets or identical assets or liabilities in less active markets (“Level 2”) and (3) significant unobservable inputs, including those that require considerable judgment for which there is little or no market data (“Level 3”).  When multiple input levels are required for a valuation, we categorize the entire fair value

measurement according to the lowest level of input that is significant to the measurement even though we may have also utilized significant inputs that are more readily observable.

Business combination —In connection with the Songa acquisition, we applied the acquisition method of accounting.  Accordingly, we recorded the acquired assets and assumed liabilities at fair value and recognized goodwill to the extent the consideration transferred exceeded the fair value of the net assets acquired.  We estimated the fair values of the acquired assets and assumed liabilities as of the date of the acquisition, and our estimates are subject to adjustment based on our final assessments of the fair values of property and equipment, intangible assets, other assets and liabilities and our evaluation of tax positions and contingencies, which are ongoing.  We will complete our final assessments of the fair values of the acquired assets and assumed liabilities and our final evaluations of uncertain tax positions and contingencies within one year of the acquisition date.  See Note 4—Business Combination.

Goodwill —We conduct impairment testing for our goodwill annually as of October 1 and more frequently, on an interim basis, when an event occurs or circumstances change that indicate that the fair value of a reporting unit may have declined below its carrying value.  We test goodwill at the reporting unit level, which is defined as an operating segment or one level below an operating segment that constitutes a business for which financial information is available and is regularly reviewed by management.  We determined that we have a single reporting unit for this purpose.  Before testing goodwill, we consider whether or not to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit is less than its carrying amount.  If, as the result of our qualitative assessment, we determine that an impairment test is required, or, alternatively, if we elect to forgo the qualitative assessment, we record an impairment to goodwill to the extent the carrying amount of the reporting unit, including goodwill, exceeds the fair value of the reporting unit.  In the three and six months ended June 30, 2018, as a result of an interim goodwill test, we recognized an aggregate loss of $463 million, which had no tax effect, associated with the impairment of our goodwill.  See Note 3—Accounting Standards Updates, Note 4—Business Combination and Note 7—Goodwill.

Contract intangible assets —In connection with the Songa acquisition, we recognized drilling contract intangible assets related to the acquired drilling contracts for future contract drilling services.  The drilling contract intangible assets represent the amount by which the fixed dayrates of the acquired contracts were above the market dayrates that were available or expected to be available during the term of the contract for similar contracts, measured as of the acquisition date.  We recognize the amortization on a straight‑line basis over the firm contract period as a component of contract drilling revenues.  At June 30, 2018, the carrying amount of our drilling contract intangible assets was $583 million.  See Note 4—Business Combination.

Derivative instruments —We record derivatives on our consolidated balance sheet, measured at fair value.  We recognize the gains and losses associated with changes in the fair value of undesignated derivatives in current period earnings.  See Note 9—Derivative Instruments.

Capitalized interest —We capitalize interest costs for qualifying construction and upgrade projects and only capitalize interest costs during periods in which progress for the construction projects continues to be underway.  In the three and six months ended June 30, 2018, we capitalized interest costs of $7 million and $20 million, respectively, for our construction work in progress.  In the three and six months ended June 30, 2017, we capitalized interest costs of $30 million and $60 million, respectively, for our construction work in progress.

Reclassifications —We have made certain reclassifications to prior period amounts to conform with the current period’s presentation.  In our condensed consolidated balance sheet as of December 31, 2017, we reclassified certain balances receivable from non‑customers, totaling $45 million, from accounts receivable, net, to other current assets.  Such reclassifications did not have a material effect on our condensed consolidated statement of financial position, results of operations or cash flows.

Note 3—Accounting Standards Updates

Recently adopted accounting standards

Revenue from contracts with customers —Effective January 1, 2018, we adopted the accounting standards update that requires an entity to recognize revenue in a manner that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.  In our evaluation of the requirements, we determined that reimbursement revenues and contract early cancellation and termination fees were part of our single performance obligation, and we determined that reimbursement revenues should be recorded on a gross basis as the service is performed.  Our adoption, using the modified retrospective approach, for which we were not required to make any changes to the prior year presentation, did not have a material effect on our condensed consolidated statements of financial position, operations and cash flows.  See Note 5—Revenues.

Income taxes —Effective January 1, 2018, we adopted the accounting standards update that requires an entity to recognize the income tax consequences of an intra entity transfer of an asset other than inventory when the transaction occurs as opposed to deferring such recognition into future periods.  Our adoption did not have a material effect on our condensed consolidated statements of financial position, operations or cash flows or on the disclosures contained in our notes to condensed consolidated financial statements.

Statement of cash flows —Effective January 1, 2018, we adopted the accounting standards update that requires amounts generally described as restricted cash or restricted cash equivalents to be included with cash and cash equivalents when reconciling the beginning and end of period total amounts presented on the statement of cash flows.  Aside from presenting the restricted cash and restricted cash equivalents as a component of the beginning and ending cash balances on our condensed consolidated statements of cash flows, we removed the effect of proceeds from and deposits to restricted accounts from our cash flows provided by or used in operating and financing activities, as applicable.  For the six months ended June 30, 2018 and 2017, such changes did not have a material effect on our condensed consolidated statements of financial position, operations or cash flows or on the disclosures contained in our notes to condensed consolidated financial statements.

Retirement benefits —Effective January 1, 2018, we adopted the accounting standards update that requires an employer to disaggregate the service cost component from the other components of net benefit cost related to defined benefit retirement plans and other postemployment benefit plans.  The update requires that the service cost component be presented in the same line item as other compensation costs for employees and the other components of net benefit cost in other income and expense on our condensed consolidated statements of operations.  The update also allows only the service cost component of net benefit cost to be eligible for capitalization.  Our adoption did not have a material effect on our condensed consolidated statements of financial position, operations or cash flows or on the disclosures contained in our notes to condensed consolidated financial statements.

Goodwill —Effective January 1, 2018, we early adopted the accounting standards update that simplifies the method for measuring the implied value of goodwill when performing a goodwill impairment test by performing a one‑step test, comparing the fair value of the reporting unit with its carrying amount.  The update eliminates the two‑step requirement to perform procedures to determine the fair value of assets and liabilities on the same basis as required in a business combination.  The update, which permits early adoption, is effective for interim and annual periods beginning after December 15, 2019, including interim periods within those annual periods.  Our adoption did not have an effect on our condensed consolidated statements of financial position, operations and cash flows and on the disclosures contained in our notes to condensed consolidated financial statements.

Recently issued accounting standards

Leases —Effective no later than January 1, 2019, we will adopt the accounting standards update that (a) requires lessees to recognize a right to use asset and a lease liability for virtually all leases, and (b) updates previous accounting standards for lessors to align certain requirements with the updates to lessee accounting standards and the revenue recognition accounting standards.  The update, which permits early adoption, is effective for interim and annual periods beginning after December 15, 2018, including interim periods within those annual periods.  Under the updated definition of a lease, we have determined that our drilling contracts could contain a lease component.  In a recent update, targeted improvements were proposed to the accounting standards, which are subject to change in the final accounting standards, that provide for (a) an optional new transition method for adoption that results in initial recognition of a cumulative effect adjustment to retained earnings in the year of adoption and (b) a practical expedient for lessors, under certain circumstances, to combine the lease and non‑lease components of revenues for presentation purposes.  Our adoption, and the ultimate effect on our consolidated financial statements, will be based on an evaluation of the contract‑specific facts and circumstances.  Additionally, based on the lease arrangements under which we are the lessee as of June 30, 2018, we expect to recognize an aggregate lease liability and a corresponding right‑to‑use asset of between $70 million and $80 million.  We do not expect our adoption to have a material effect on our condensed consolidated statements of financial position, operations and cash flows.  We continue to evaluate the requirements with regard to arrangements under which we are the lessor, the proposed targeted updates and the effects such requirements may have on the disclosures contained in our notes to condensed consolidated financial statements.

Other comprehensive income —Effective no later than January 1, 2019, we will adopt the accounting standards update that allows for reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Cuts and Jobs Act of 2017 (the “2017 Tax Act”).  The update, which permits early adoption, is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those annual periods.  We continue to evaluate the requirements and do not expect our adoption to have a material effect on our condensed consolidated statements of financial position, operations and cash flows and on the disclosures contained in our notes to condensed consolidated financial statements.

Note 4—Business Combination

Overview —On January 30, 2018, we acquired an approximate 97.7 percent ownership interest in Songa.  We believe the Songa acquisition strengthens our position as a leader in harsh environment and ultra‑deepwater drilling services by adding high value assets, including four high‑specification harsh environment floaters, supported by significant contract backlog.  Additionally, the acquisition strengthens our footprint in harsh environment operating areas.  The goodwill resulting from the business combination was attributed to synergies and intangible assets that did not qualify for separate recognition.  In the six months ended June 30, 2018, we incurred acquisition costs of $7 million, recorded in general and administrative costs and expenses.

Consideration —In connection with the acquisition, we issued 66.9 million shares with a market value of $10.99 per share, based on the market value of our shares on the acquisition date.  We also issued $854 million aggregate principal amount of Exchangeable Bonds, including $562 million aggregate principal amount as partial consideration to Songa shareholders and $292 million aggregate principal amount as settlement for certain Songa indebtedness.  The aggregate fair value of the consideration transferred in the business combination was as follows (in millions):