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Note 10. Significant Restructuring and Impairment Costs (Tables) | 3 Months Ended
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Dec. 31, 2017
2018 Plan [Domain] |
Restructuring Cost and Reserve [Line Items] |
Restructuring and Related Costs [Table Text Block] | The following table summarizes the changes in Adient's 2018 Plan reserve:
(in millions) |  | Employee Severance and Termination Benefits |  | Long-Lived Asset Impairments |  | Other |  | Currency Translation |  | Total
Original Reserve |  | $ | 13 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 13 |
Balance at December 31, 2017 |  | $ | 13 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 13 |
2017 Plan [Domain] |
Restructuring Cost and Reserve [Line Items] |
Restructuring and Related Costs [Table Text Block] | The following table summarizes the changes in Adient's 2017 Plan reserve:
(in millions) |  | Employee Severance and Termination Benefits |  | Long-Lived Asset Impairments |  | Other |  | Currency Translation |  | Total
Original Reserve |  | $ | 42 |  |  | $ | — |  |  | $ | 4 |  |  | $ | — |  |  | $ | 46 |
Utilized—cash |  | (4 | ) |  | — |  |  | (4 | ) |  | — |  |  | (8 | )
Balance at September 30, 2017 |  | 38 |  |  | — |  |  | — |  |  | — |  |  | 38 |
Utilized—cash |  | (4 | ) |  | — |  |  | — |  |  | — |  |  | (4 | )
Balance at December 31, 2017 |  | $ | 34 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 34 |
2016 Plan [Domain] |
Restructuring Cost and Reserve [Line Items] |
Restructuring and Related Costs [Table Text Block] | The following table summarizes the changes in Adient's 2016 Plan reserve:
(in millions) |  | Employee Severance and Termination Benefits |  | Long-Lived Asset Impairments |  | Other |  | Currency Translation |  | Total
Original Reserve |  | $ | 223 |  |  | $ | 87 |  |  | $ | 22 |  |  | $ | — |  |  | $ | 332 |
Utilized—cash |  | (29 | ) |  | — |  |  | (1 | ) |  | — |  |  | (30 | )
Utilized—noncash |  | — |  |  | (87 | ) |  | — |  |  | (2 | ) |  | (89 | )
Balance at September 30, 2016 |  | 194 |  |  | — |  |  | 21 |  |  | (2 | ) |  | 213 |
Utilized—cash |  | (48 | ) |  | — |  |  | (12 | ) |  | — |  |  | (60 | )
Utilized—noncash |  | — |  |  | — |  |  | — |  |  | 7 |  |  | 7 |
Balance at September 30, 2017 |  | 146 |  |  | — |  |  | 9 |  |  | 5 |  |  | 160 |
Noncash adjustment—underspend |  | (13 | ) |  | — |  |  | — |  |  | — |  |  | (13 | )
Utilized—cash |  | (12 | ) |  | — |  |  | — |  |  | — |  |  | (12 | )
Balance at December 31, 2017 |  | $ | 121 |  |  | $ | — |  |  | $ | 9 |  |  | $ | 5 |  |  | $ | 135 |

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- Definition Tabular disclosure of costs incurred for restructuring including, but not limited to, exit and disposal activities, remediation, implementation, integration, asset impairment, and charges against earnings from the write-down of assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 + Details
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