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Postemployment Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2016
Postemployment Benefit Plans |
Schedule of weighted-average assumptions used to estimate benefit obligations |
|  | December 31, 2016 |  | December 31, 2015 |
|  | U.S. |  | Non-U.S. |  | OPEB |  | U.S. |  | Non-U.S. |  | OPEB |
|  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |
Discount rate |  | 4.26 | % | 2.69 | % | 3.08 | % | 4.55 | % | 3.59 | % | 3.13 | %
Compensation trend rate |  | na |  | 2.25 | % | na |  | 3.82 | % | 3.77 | % | na |
Schedule of weighted-average assumptions used to estimate net periodic benefit costs |
|  | Year ended December 31, 2016 |  | Year ended December 31, 2015 |  | Year ended December 31, 2014 |
|  | U.S. |  | Non-U.S. |  | OPEB |  | U.S. |  | Non-U.S. |  | OPEB |  | U.S. |  | Non-U.S. |  |  |
|  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | OPEB Plans |
Discount rate |  | 4.56 | % | 3.69 | % | 3.13 | % | 4.16 | % | 3.26 | % | 3.86 | % | 5.04 | % | 4.41 | % | 4.54 | %
Expected rate of return |  | 6.82 | % | 5.85 | % | na |  | 7.79 | % | 5.93 | % | na |  | 7.18 | % | 6.07 | % | na |
Compensation trend rate |  | 0.22 | % | 4.01 | % | na |  | 0.21 | % | 3.83 | % | na |  | 4.13 | % | 4.25 | % | na |
Health care cost trend rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
-initial |  | na |  | na |  | na |  | na |  | na |  | 7.81 | % | na |  | na |  | 7.81 | %
-ultimate |  | na |  | na |  | na |  | na |  | na |  | 5.00 | % | na |  | na |  | 5.00 | %
-ultimate year |  | na |  | na |  | na |  | na |  | na |  | 2023 |  | na |  | na |  | 2020 |
“na” means not applicable.
Schedule of changes in projected benefit obligation, plan assets and funded status and the amounts recognized on consolidated balance sheets | The changes in projected benefit obligation, plan assets and funded status and the amounts recognized on our consolidated balance sheets were as follows (in millions):
|  | Year ended December 31, 2016 |  | Year ended December 31, 2015 |
|  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |
|  | Plans |  | Plans |  | Plans |  | Total |  | Plans |  | Plans |  | Plans |  | Total |
Change in projected benefit obligation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Projected benefit obligation, beginning of period |  | $ | 1,523 |  | $ | 502 |  | $ | 24 |  | $ | 2,049 |  | $ | 1,592 |  | $ | 629 |  | $ | 59 |  | $ | 2,280 |
Actuarial (gains) losses, net |  |  | 52 |  |  | 36 |  |  | (3) |  |  | 85 |  |  | (71) |  |  | (83) |  |  | — |  |  | (154) |
Service cost |  |  | 3 |  |  | 10 |  |  | — |  |  | 13 |  |  | 5 |  |  | 26 |  |  | 1 |  |  | 32 |
Interest cost |  |  | 69 |  |  | 17 |  |  | 1 |  |  | 87 |  |  | 65 |  |  | 19 |  |  | 2 |  |  | 86 |
Plan amendments |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (33) |  |  | (33) |
Currency exchange rate changes |  |  | — |  |  | (77) |  |  | — |  |  | (77) |  |  | — |  |  | (48) |  |  | — |  |  | (48) |
Participant contributions |  |  | — |  |  | — |  |  | 1 |  |  | 1 |  |  | — |  |  | 1 |  |  | 3 |  |  | 4 |
Benefits paid |  |  | (90) |  |  | (46) |  |  | (4) |  |  | (140) |  |  | (65) |  |  | (44) |  |  | (8) |  |  | (117) |
Settlements and curtailments |  |  | — |  |  | (44) |  |  | — |  |  | (44) |  |  | (3) |  |  | 2 |  |  | — |  |  | (1) |
Projected benefit obligation, end of period |  |  | 1,557 |  |  | 398 |  |  | 19 |  |  | 1,974 |  |  | 1,523 |  |  | 502 |  |  | 24 |  |  | 2,049 |
Change in plan assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets, beginning of period |  |  | 1,198 |  |  | 439 |  |  | — |  |  | 1,637 |  |  | 1,271 |  |  | 488 |  |  | — |  |  | 1,759 |
Actual return on plan assets |  |  | 93 |  |  | 84 |  |  | — |  |  | 177 |  |  | (21) |  |  | 12 |  |  | — |  |  | (9) |
Currency exchange rate changes |  |  | — |  |  | (80) |  |  | — |  |  | (80) |  |  | — |  |  | (39) |  |  | — |  |  | (39) |
Employer contributions |  |  | 3 |  |  | 43 |  |  | 3 |  |  | 49 |  |  | 13 |  |  | 21 |  |  | 5 |  |  | 39 |
Participant contributions |  |  | — |  |  | — |  |  | 1 |  |  | 1 |  |  | — |  |  | 1 |  |  | 3 |  |  | 4 |
Benefits paid |  |  | (90) |  |  | (46) |  |  | (4) |  |  | (140) |  |  | (65) |  |  | (44) |  |  | (8) |  |  | (117) |
Settlements |  |  | — |  |  | (40) |  |  | — |  |  | (40) |  |  | — |  |  | — |  |  | — |  |  | — |
Fair value of plan assets, end of period |  |  | 1,204 |  |  | 400 |  |  | — |  |  | 1,604 |  |  | 1,198 |  |  | 439 |  |  | — |  |  | 1,637 |
Funded status, end of period |  | $ | (353) |  | $ | 2 |  | $ | (19) |  | $ | (370) |  | $ | (325) |  | $ | (63) |  | $ | (24) |  | $ | (412) |
Balance sheet classification, end of period: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pension asset, non-current |  | $ | — |  | $ | 5 |  | $ | — |  | $ | 5 |  | $ | — |  | $ | 2 |  | $ | — |  | $ | 2 |
Pension liability, current |  |  | (2) |  |  | — |  |  | (3) |  |  | (5) |  |  | (3) |  |  | (3) |  |  | (3) |  |  | (9) |
Pension liability, non-current |  |  | (351) |  |  | (3) |  |  | (16) |  |  | (370) |  |  | (322) |  |  | (62) |  |  | (21) |  |  | (405) |
Accumulated other comprehensive income (loss) (a) |  |  | (316) |  |  | (94) |  |  | 23 |  |  | (387) |  |  | (281) |  |  | (119) |  |  | 25 |  |  | (375) |
| (a) |  | Amounts are before income tax effect.
Schedule of aggregate projected benefit obligation and fair value of plan assets for plans with a projected benefit obligation in excess of plan assets | The aggregate projected benefit obligation and fair value of plan assets for plans with a projected benefit obligation in excess of plan assets were as follows (in millions):
|  | December 31, 2016 |  | December 31, 2015 |
|  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |
|  | Plans |  | Plans |  | Plans |  | Total |  | Plans |  | Plans |  | Plans |  | Total |
Projected benefit obligation |  | $ | 1,557 |  | $ | 5 |  | $ | 19 |  | $ | 1,581 |  | $ | 1,523 |  | $ | 502 |  | $ | 24 |  | $ | 2,049 |
Fair value of plan assets |  |  | 1,204 |  |  | 2 |  |  | — |  |  | 1,206 |  |  | 1,198 |  |  | 439 |  |  | — |  |  | 1,637 |
Schedule of aggregate accumulated benefit obligation and fair value of plan assets for plans with an accumulated benefit obligation in excess of plan assets | The aggregate accumulated benefit obligation and fair value of plan assets for plans with an accumulated benefit obligation in excess of plan assets were as follows (in millions):
|  | December 31, 2016 |  | December 31, 2015 |
|  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |
|  | Plans |  | Plans |  | Plans |  | Total |  | Plans |  | Plans |  | Plans |  | Total |
Accumulated benefit obligation |  | $ | 1,557 |  | $ | 4 |  | $ | 19 |  | $ | 1,580 |  | $ | 1,523 |  | $ | 374 |  | $ | 24 |  | $ | 1,921 |
Fair value of plan assets |  |  | 1,204 |  |  | — |  |  | — |  |  | 1,204 |  |  | 1,198 |  |  | 352 |  |  | — |  |  | 1,550 |
Schedule of weighted average target and actual allocations of the investments of Transocean benefit plans |
| December 31, 2016 |  | December 31, 2015 |
|  | Target allocation |  | Actual allocation |  | Target allocation |  | Actual allocation |
|  | U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |
|  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |
Equity securities |  | 50 | % | 45 | % | 53 | % | 45 | % | 50 | % | 56 | % | 47 | % | 49 | %
Fixed income securities |  | 50 | % | 45 | % | 47 | % | 44 | % | 50 | % | 16 | % | 52 | % | 26 | %
Other investments |  | — |  | 10 | % | — |  | 11 | % | — |  | 28 | % | 1 | % | 25 | %
Total |  | 100 | % | 100 | % | 100 | % | 100 | % | 100 | % | 100 | % | 100 | % | 100 | %
Schedule of fair value of the assets of Transocean benefit plans by asset category and their level within the fair value hierarchy | As of December 31, 2016, the investments for our funded Transocean Plans were categorized as follows (in millions):
|  | December 31, 2016 |
|  | Significant observable inputs |  | Significant other observable inputs |  | Total |
|  | U.S. |  | Non-U.S. |  | Transocean |  | U.S. |  | Non-U.S. |  | Transocean |  | U.S. |  | Non-U.S. |  | Transocean |
|  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |
Mutual funds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. equity funds |  | $ | 516 |  | $ | — |  | $ | 516 |  | $ | 2 |  | $ | — |  | $ | 2 |  | $ | 518 |  | $ | — |  | $ | 518 |
Non-U.S. equity funds |  |  | 113 |  |  | — |  |  | 113 |  |  | 4 |  |  | 181 |  |  | 185 |  |  | 117 |  |  | 181 |  |  | 298 |
Bond funds |  |  | 567 |  |  | — |  |  | 567 |  |  | — |  |  | 178 |  |  | 178 |  |  | 567 |  |  | 178 |  |  | 745 |
Total mutual funds |  |  | 1,196 |  |  | — |  |  | 1,196 |  |  | 6 |  |  | 359 |  |  | 365 |  |  | 1,202 |  |  | 359 |  |  | 1,561 |
Other investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and money market funds |  |  | 2 |  |  | 2 |  |  | 4 |  |  | — |  |  | — |  |  | — |  |  | 2 |  |  | 2 |  |  | 4 |
Property collective trusts |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 17 |  |  | 17 |  |  | — |  |  | 17 |  |  | 17 |
Investment contracts |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 22 |  |  | 22 |  |  | — |  |  | 22 |  |  | 22 |
Total other investments |  |  | 2 |  |  | 2 |  |  | 4 |  |  | — |  |  | 39 |  |  | 39 |  |  | 2 |  |  | 41 |  |  | 43 |
Total investments |  | $ | 1,198 |  | $ | 2 |  | $ | 1,200 |  | $ | 6 |  | $ | 398 |  | $ | 404 |  | $ | 1,204 |  | $ | 400 |  | $ | 1,604 |
As of December 31, 2015, the investments for our funded Transocean Plans were categorized as follows (in millions):
|  | December 31, 2015 |
|  | Significant observable inputs |  | Significant other observable inputs |  | Total |
|  | U.S. |  | Non-U.S. |  | Transocean |  | U.S. |  | Non-U.S. |  | Transocean |  | U.S. |  | Non-U.S. |  | Transocean |
|  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |
Mutual funds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. equity funds |  | $ | 459 |  | $ | — |  | $ | 459 |  | $ | — |  | $ | 36 |  | $ | 36 |  | $ | 459 |  | $ | 36 |  | $ | 495 |
Non-U.S. equity funds |  |  | 104 |  |  | 2 |  |  | 106 |  |  | 3 |  |  | 179 |  |  | 182 |  |  | 107 |  |  | 181 |  |  | 288 |
Bond funds |  |  | 626 |  |  | — |  |  | 626 |  |  | — |  |  | 115 |  |  | 115 |  |  | 626 |  |  | 115 |  |  | 741 |
Total mutual funds |  |  | 1,189 |  |  | 2 |  |  | 1,191 |  |  | 3 |  |  | 330 |  |  | 333 |  |  | 1,192 |  |  | 332 |  |  | 1,524 |
Other investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and money market funds |  |  | 6 |  |  | — |  |  | 6 |  |  | — |  |  | — |  |  | — |  |  | 6 |  |  | — |  |  | 6 |
Property collective trusts |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 20 |  |  | 20 |  |  | — |  |  | 20 |  |  | 20 |
Investment contracts |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 87 |  |  | 87 |  |  | — |  |  | 87 |  |  | 87 |
Total other investments |  |  | 6 |  |  | — |  |  | 6 |  |  | — |  |  | 107 |  |  | 107 |  |  | 6 |  |  | 107 |  |  | 113 |
Total investments |  | $ | 1,195 |  | $ | 2 |  | $ | 1,197 |  | $ | 3 |  | $ | 437 |  | $ | 440 |  | $ | 1,198 |  | $ | 439 |  | $ | 1,637 |
Schedule of Net Periodic Benefit Costs Before Tax | Net periodic benefit costs, before tax, included the following components (in millions):
|  |  | Year ended December 31, 2016 |  | Year ended December 31, 2015 |  | Year ended December 31, 2014 |
|  |  | U.S. |  | Non-U.S. |  | Transocean |  | U.S. |  | Non-U.S. |  | Transocean |  | U.S. |  | Non-U.S. |  | Transocean |
|  |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |  | Plans |
Net periodic benefit costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  |  | $ | 3 |  | $ | 10 |  | $ | 13 |  | $ | 5 |  | $ | 26 |  | $ | 31 |  | $ | 39 |  | $ | 29 |  | $ | 68 |
Interest cost |  |  |  | 69 |  |  | 17 |  |  | 86 |  |  | 65 |  |  | 19 |  |  | 84 |  |  | 64 |  |  | 27 |  |  | 91 |
Expected return on plan assets |  |  |  | (80) |  |  | (25) |  |  | (105) |  |  | (87) |  |  | (28) |  |  | (115) |  |  | (75) |  |  | (28) |  |  | (103) |
Settlements and curtailments |  |  |  | — |  |  | (5) |  |  | (5) |  |  | 3 |  |  | 2 |  |  | 5 |  |  | (7) |  |  | 3 |  |  | (4) |
Actuarial (gain) loss, net |  |  |  | 5 |  |  | (1) |  |  | 4 |  |  | 11 |  |  | 11 |  |  | 22 |  |  | 17 |  |  | 5 |  |  | 22 |
Prior service cost, net |  |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (1) |  |  | — |  |  | (1) |
Net periodic benefit costs |  |  | $ | (3) |  | $ | (4) |  | $ | (7) |  | $ | (3) |  | $ | 30 |  | $ | 27 |  | $ | 37 |  | $ | 36 |  | $ | 73 |
Schedule of amounts in accumulated other comprehensive income, before tax, that have not been recognized as components of net periodic benefit costs | The following table presents the amounts in accumulated other comprehensive income (loss), before tax, that have not been recognized as components of net periodic benefit costs (in millions):
|  | December 31, 2016 |  | December 31, 2015 |
|  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |
|  | Plans |  | Plans |  | Plans |  | Total |  | Plans |  | Plans |  | Plans |  | Total |
Actuarial gain (loss), net |  | $ | (316) |  | $ | (94) |  | $ | (3) |  | $ | (413) |  | $ | (281) |  | $ | (119) |  | $ | (6) |  | $ | (406) |
Prior service cost, net |  |  | — |  |  | — |  |  | 26 |  |  | 26 |  |  | — |  |  | — |  |  | 31 |  |  | 31 |
Total |  | $ | (316) |  | $ | (94) |  | $ | 23 |  | $ | (387) |  | $ | (281) |  | $ | (119) |  | $ | 25 |  | $ | (375) |
Schedule of amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit costs in next fiscal year | The following table presents the amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit costs during the year ending December 31, 2017 (in millions):
|  | Year ending December 31, 2017 |
|  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |
|  | Plans |  | Plans |  | Plans |  | Total |
Actuarial loss, net |  | $ | 5 |  | $ | 1 |  | $ | — |  | $ | 6 |
Prior service cost, net |  |  | — |  |  | — |  |  | (3) |  |  | (3) |
Total amount expected to be recognized |  | $ | 5 |  | $ | 1 |  | $ | (3) |  | $ | 3 |
Schedule of projected benefits payments | The following were the projected benefits payments (in millions):
|  | U.S. |  | Non-U.S. |  | OPEB |  |  |  |
|  | Plans |  | Plans |  | Plans |  | Total |
Years ending December 31, |  |  |  |  |  |  |  |  |  |  |  |  |
2017 |  | $ | 64 |  | $ | 7 |  | $ | 3 |  | $ | 74 |
2018 |  |  | 68 |  |  | 6 |  |  | 3 |  |  | 77 |
2019 |  |  | 71 |  |  | 8 |  |  | 3 |  |  | 82 |
2020 |  |  | 74 |  |  | 8 |  |  | 2 |  |  | 84 |
2021 |  |  | 78 |  |  | 9 |  |  | 2 |  |  | 89 |
2022 - 2026 |  |  | 417 |  |  | 59 |  |  | 7 |  |  | 483 |

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- Definition Tabular disclosure of the actual and targeted allocation of defined benefit plan assets. + References No definition available. + Details
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- Definition Tabular disclosure of net funded status of pension plans and/or other employee benefit plans. It also includes disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized. + References No definition available. + Details
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- Definition Tabular disclosure of accumulated benefit obligations and fair values of plan assets of pension plans and/or other employee benefit plans where the accumulated benefit obligation exceeds the fair value of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income (loss) expected to be recognized as components of net periodic benefit cost over the next fiscal year, including the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (s) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the aggregate benefit obligation and aggregate fair value of plan assets for pension plans and/or other employee benefit plans with benefit obligations in excess of plan assets as of the measurement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the amounts related to pension plans and/or other employee benefit plans in accumulated other comprehensive income or loss that have not yet been recognized as components of net periodic benefit cost, such as the net gain (loss), net prior service cost or credit, and net transition asset or obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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