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Pension and Other Post Employment Benefit (Tables) | 9 Months Ended
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Sep. 30, 2017
Pension Plan |
Defined Benefit Plan Disclosure [Line Items] |
Schedules of Net Periodic Benefit Cost |
| Successor | Predecessor
(In millions) | For the Period September 1 - September 30, 2017 | For the Period July 1 - August 31, 2017 | Three Months Ended September 30, 2016 | For the Period Jan. 1 - August 31, 2017 | Nine Months Ended September 30, 2016
Service cost | $ | 12 |  | $ | 25 |  | $ | 44 |  | $ | 92 |  | $ | 133 |
Interest cost | 62 |  | 132 |  | 189 |  | 524 |  | 612 |
Expected return on plan assets | (102 | ) | (207 | ) | (327 | ) | (824 | ) | (996 | )
Amortization of loss | — |  | 127 |  | 229 |  | 506 |  | 605 |
Amortization of prior service benefit | — |  | (1 | ) | (2 | ) | (3 | ) | (5 | )
Curtailment (gain) loss | — |  | — |  | (1 | ) | — |  | 65 |
Settlement loss | — |  | — |  | 22 |  | — |  | 60 |
Net periodic benefit (credit) cost - Total | $ | (28 | ) | $ | 76 |  | $ | 154 |  | $ | 295 |  | $ | 474 |
Less: Discontinued operations | — |  | 1 |  | 1 |  | 3 |  | — |
Net periodic benefit (credit) cost - Continuing operations | $ | (28 | ) | $ | 75 |  | $ | 153 |  | $ | 292 |  | $ | 474 |
Other Post Employment Benefit Plans |
Defined Benefit Plan Disclosure [Line Items] |
Schedules of Net Periodic Benefit Cost |
| Successor | Predecessor
(In millions) | For the Period September 1 - September 30, 2017 | For the Period July 1 - August 31, 2017 | Three Months Ended September 30, 2016 | For the Period Jan. 1 - August 31, 2017 | Nine Months Ended September 30, 2016
Service cost | $ | 1 |  | $ | 2 |  | $ | 2 |  | $ | 6 |  | $ | 9 |
Interest cost | 6 |  | 15 |  | 20 |  | 60 |  | 64 |
Amortization of loss | — |  | 15 |  | 21 |  | 61 |  | 56 |
Amortization of prior service benefit | — |  | (11 | ) | (36 | ) | (46 | ) | (111 | )
Curtailment gain | — |  | — |  | — |  | — |  | (33 | )
Net periodic benefit cost (credit) - Continuing operations | $ | 7 |  | $ | 21 |  | $ | 7 |  | $ | 81 |  | $ | (15 | )

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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=65897934&loc=d3e1928-114920 + Details
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