| **Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Statement of Comprehsive Income (Details) - USD ($) $ in Millions** | 3 Months Ended | 9 Months Ended |
|---------------------------------------------------------------------------------------------------------------------------------------------------|----------------|----------------|
||
| Net income (loss)                                                                                                                                 | $ (28)         | $ (21)         | $ (39) | $ (111) |
| **Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]**                                                                    |           |           |   |   |
| Foreign currency translation adjustment                                                                                                           | (10)           | (47)           | 7 | (133) |
| Defined benefit plans (net of tax of $0, for all entities)                                                                                        | 34             | 33             | 82 | 98 |
| Total other comprehensive income (loss)                                                                                                           | 24             | (14)           | 89 | (35) |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest                                                | (4)            | (35)           | 50 | (146) |
| Less: Net income attributable to non-controlling interests                                                                                        | 6              | 7              | 24 | 23 |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent                                                                                   | (10)           | (42)           | 26 | (169) |
| Parent Company [Member]                                                                                                                           |           |           |   |   |
| Net income (loss)                                                                                                                                 | (34)           | (28)           | (63) | (134) |
| **Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]**                                                                    |           |           |   |   |
| Foreign currency translation adjustment                                                                                                           | (10)           | (47)           | 7 | (133) |
| Defined benefit plans (net of tax of $0, for all entities)                                                                                        | 34             | 33             | 82 | 98 |
| Total other comprehensive income (loss)                                                                                                           | 24             | (14)           | 89 | (35) |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest                                                | (10)           | (42)           | 26 | (169) |
| Less: Net income attributable to non-controlling interests                                                                                        | 0              | 0              | 0 | 0 |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent                                                                                   | (10)           | (42)           | 26 | (169) |
| Guarantor Subsidiaries [Member]                                                                                                                   |           |           |   |   |
| Net income (loss)                                                                                                                                 | 1              | (52)           | (93) | (186) |
| **Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]**                                                                    |           |           |   |   |
| Foreign currency translation adjustment                                                                                                           | 0              | 0              | 0 | 0 |
| Defined benefit plans (net of tax of $0, for all entities)                                                                                        | 33             | 8              | 96 | 70 |
| Total other comprehensive income (loss)                                                                                                           | 33             | 8              | 96 | 70 |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest                                                | 34             | (44)           | 3 | (116) |
| Less: Net income attributable to non-controlling interests                                                                                        | 0              | 0              | 0 | 0 |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent                                                                                   | 34             | (44)           | 3 | (116) |
| Non-Guarantor Subsidiaries [Member]                                                                                                               |           |           |   |   |
| Net income (loss)                                                                                                                                 | 55             | 124            | 245 | 298 |
| **Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]**                                                                    |           |           |   |   |
| Foreign currency translation adjustment                                                                                                           | (10)           | (47)           | 7 | (133) |
| Defined benefit plans (net of tax of $0, for all entities)                                                                                        | 1              | 25             | (14) | 28 |
| Total other comprehensive income (loss)                                                                                                           | (9)            | (22)           | (7) | (105) |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest                                                | 46             | 102            | 238 | 193 |
| Less: Net income attributable to non-controlling interests                                                                                        | 6              | 7              | 24 | 23 |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent                                                                                   | 40             | 95             | 214 | 170 |
| Consolidation, Eliminations [Member]                                                                                                              |           |           |   |   |
| Net income (loss)                                                                                                                                 | (50)           | (65)           | (128) | (89) |
| **Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]**                                                                    |           |           |   |   |
| Foreign currency translation adjustment                                                                                                           | 10             | 47             | (7) | 133 |
| Defined benefit plans (net of tax of $0, for all entities)                                                                                        | (34)           | (33)           | (82) | (98) |
| Total other comprehensive income (loss)                                                                                                           | (24)           | 14             | (89) | 35 |
| Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest                                                | (74)           | (51)           | (217) | (54) |
| Less: Net income attributable to non-controlling interests                                                                                        | 0              | 0              | 0 | 0 |
| Comprehensive Income (Loss), Net of Tax, Attributable to Parent                                                                                   | $ (74)         | $ (51)         | $ (217) | $ (54) |

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.
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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.
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Amount of Net Income (Loss) attributable to noncontrolling interest.
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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.
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Amount after tax and reclassification adjustments of other comprehensive income (loss).
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Amount after tax and reclassification adjustments, of (increase) decrease in accumulated other comprehensive (income) loss related to pension and other postretirement defined benefit plans.
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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.
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