Fresh Start Accounting - Enterprise Value To The Estimated Fair Value Of The Successor Common Stock (Details) - USD ($) $ / shares in Units, $ in Millions |
Sep. 30, 2018 |
Dec. 16, 2017 |
Dec. 15, 2017 |
| Fresh-Start Adjustment [Line Items] |
|
|
|
| Enterprise value |
|
|
$ 5,721
|
| Plus: |
|
|
|
| Cash and cash equivalents |
|
$ 366
|
366
|
| Less: |
|
|
|
| Minimum cash required for operations |
|
|
(120)
|
| Fair value of Term Loan Credit Agreement |
|
|
(2,896)
|
| Fair value of capitalized leases |
|
|
(20)
|
| Fair value of pension and other post-retirement obligations, net of tax |
|
|
(856)
|
| Change in net deferred tax liabilities from reorganization |
|
|
(510)
|
| Fair value of Successor Emergence Date Warrants |
|
|
(17)
|
| Fair value of Successor common stock |
|
1,668
|
$ 1,668
|
| Shares issued at December 15, 2017 (in shares) |
110,218,653
|
|
110,000,000
|
| Per share value (usd per share) |
|
|
$ 15.16
|
| Debt, fair value, percent of par |
|
|
99.00%
|
| Post-retirement Benefits |
|
|
|
| Less: |
|
|
|
| Rate of return on plan assets |
|
|
5.90%
|
| Discount rate |
|
|
3.77%
|
| U.S. | Pension Plan |
|
|
|
| Less: |
|
|
|
| Rate of return on plan assets |
|
|
7.75%
|
| Discount rate |
4.22%
|
|
3.70%
|
| U.S. | Post-retirement Benefits |
|
|
|
| Less: |
|
|
|
| Discount rate |
4.26%
|
|
|
| Non-US | Pension Plan |
|
|
|
| Less: |
|
|
|
| Rate of return on plan assets |
|
|
3.80%
|
| Discount rate |
1.92%
|
|
1.52%
|
| As Previously Reported |
|
|
|
| Fresh-Start Adjustment [Line Items] |
|
|
|
| Enterprise value |
|
|
$ 5,721
|
| Plus: |
|
|
|
| Cash and cash equivalents |
|
340
|
340
|
| Less: |
|
|
|
| Minimum cash required for operations |
|
|
(120)
|
| Fair value of Term Loan Credit Agreement |
|
|
(2,896)
|
| Fair value of capitalized leases |
|
|
(20)
|
| Fair value of pension and other post-retirement obligations, net of tax |
|
|
(856)
|
| Change in net deferred tax liabilities from reorganization |
|
|
(510)
|
| Fair value of Successor Emergence Date Warrants |
|
|
(17)
|
| Fair value of Successor common stock |
|
1,642
|
$ 1,642
|
| Shares issued at December 15, 2017 (in shares) |
110,218,653
|
|
110,000,000
|
| Per share value (usd per share) |
|
|
$ 14.93
|
| Adjustments |
|
|
|
| Fresh-Start Adjustment [Line Items] |
|
|
|
| Enterprise value |
|
|
$ 0
|
| Plus: |
|
|
|
| Cash and cash equivalents |
|
26
|
26
|
| Less: |
|
|
|
| Minimum cash required for operations |
|
|
0
|
| Fair value of Term Loan Credit Agreement |
|
|
0
|
| Fair value of capitalized leases |
|
|
0
|
| Fair value of pension and other post-retirement obligations, net of tax |
|
|
0
|
| Change in net deferred tax liabilities from reorganization |
|
|
0
|
| Fair value of Successor Emergence Date Warrants |
|
|
0
|
| Fair value of Successor common stock |
|
$ 26
|
$ 26
|
| Shares issued at December 15, 2017 (in shares) |
|
|
0
|
| Per share value (usd per share) |
|
|
$ 0.23
|