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Pension and Postretirement Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2017
Components of Net Periodic Benefit Cost (Credit) and Other Amounts Recognized in OCI [Table Text Block] | Components of net periodic benefit cost (credit) and other amounts recognized in OCI —
| Pension Benefits
| 2017 |  | 2016 |  | 2015
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S.
Interest cost | $ | 51 |  |  | $ | 7 |  |  | $ | 53 |  |  | $ | 7 |  |  | $ | 66 |  |  | $ | 8 |
Expected return on plan assets | (82 | ) |  | (3 | ) |  | (92 | ) |  | (2 | ) |  | (108 | ) |  | (2 | )
Service cost |  |  |  | 7 |  |  |  |  |  | 5 |  |  |  |  |  | 5 |
Amortization of net actuarial loss | 23 |  |  | 7 |  |  | 21 |  |  | 6 |  |  | 18 |  |  | 7 |
Termination benefit |  |  | 1 |  |  |  |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |
Net periodic benefit cost (credit) | (8 | ) |  | 19 |  |  | (18 | ) |  | 17 |  |  | (24 | ) |  | 18 |
Recognized in OCI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount due to net actuarial (gains) losses | 22 |  |  | 4 |  |  | 68 |  |  | 16 |  |  | 40 |  |  | (6 | )
Reclassification adjustment for net actuarial losses in net periodic benefit cost | (23 | ) |  | (7 | ) |  | (21 | ) |  | (6 | ) |  | (18 | ) |  | (7 | )
Curtailment |  |  | (1 | ) |  |  |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  | (1 | ) |  |  |  |  | (11 | )
Total recognized in OCI | (1 | ) |  | (4 | ) |  | 47 |  |  | 9 |  |  | 22 |  |  | (24 | )
Net recognized in benefit cost (credit) and OCI | $ | (9 | ) |  | $ | 15 |  |  | $ | 29 |  |  | $ | 26 |  |  | $ | (2 | ) |  | $ | (6 | )
| OPEB - Non-U.S.
| 2017 |  | 2016 |  | 2015
Interest cost | $ | 3 |  |  | $ | 3 |  |  | $ | 3 |
Service cost | 1 |  |  | 1 |  |  | 1 |
Amortization of net actuarial gain |  |  |  | (1 | ) |  |  |
Net periodic benefit cost | 4 |  |  | 3 |  |  | 4 |
Recognized in OCI: |  |  |  |  |  |  |  |
Amount due to net actuarial (gains) losses | 2 |  |  | 4 |  |  | (6 | )
Reclassification adjustment for net actuarial gain in net periodic benefit cost |  |  |  | 1 |  |  |  |
Total recognized in OCI | 2 |  |  | 5 |  |  | (6 | )
Net recognized in benefit cost and OCI | $ | 6 |  |  | $ | 8 |  |  | $ | (2 | )
Reconciliation of Changes in Benefit Obligations, Plan Assets and Funded Status [Table Text Block] | Funded status — The following tables provide reconciliations of the changes in benefit obligations, plan assets and funded status.
| Pension Benefits |  |  |  |
| 2017 |  | 2016 |  | OPEB - Non-U.S.
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | 2017 |  | 2016
Reconciliation of benefit obligation: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligation at beginning of period | $ | 1,682 |  |  | $ | 309 |  |  | $ | 1,692 |  |  | $ | 288 |  |  | $ | 91 |  |  | $ | 86 |
Interest cost | 51 |  |  | 7 |  |  | 53 |  |  | 7 |  |  | 3 |  |  | 3 |
Service cost |  |  |  | 7 |  |  |  |  |  | 5 |  |  | 1 |  |  | 1 |
Actuarial (gain) loss | 115 |  |  | 7 |  |  | 59 |  |  | 18 |  |  | 2 |  |  | 4 |
Benefit payments | (118 | ) |  | (14 | ) |  | (122 | ) |  | (12 | ) |  | (5 | ) |  | (5 | )
Acquisitions |  |  | 22 |  |  |  |  |  |  |  |  |
New plans |  |  |  |  |  |  |  |  |  | 14 |  |  |  |  |  |  |
Settlements |  |  |  | (1 | ) |  |  |  |  | (2 | ) |  |  |  |  |  |
Termination benefit |  |  | 1 |  |  |  |  |  |  |  |  |
Curtailment |  |  | (1 | ) |  |  |  |  |  |  |  |
Other |  |  |  |  |  |  |  |  |  | (5 | ) |  |  |  |  |  |
Translation adjustments |  |  |  | 40 |  |  |  |  |  | (4 | ) |  | 7 |  |  | 2 |
Obligation at end of period | $ | 1,730 |  |  | $ | 377 |  |  | $ | 1,682 |  |  | $ | 309 |  |  | $ | 99 |  |  | $ | 91 |
The amount included on the New plans line in the preceding table includes obligations under a pension plan in Switzerland, gratuity plans in India and a termination benefit plan covering certain employees in Italy. We determined in 2016 that these obligations should be included within our defined benefit pension plan obligation and the related disclosures. The adjustments were primarily reclassifications from other noncurrent liabilities to pension and postretirement obligations and did not have a material impact on pension expense.
| Pension Benefits |  |  |  |
| 2017 |  | 2016 |  | OPEB - Non-U.S.
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | 2017 |  | 2016
Reconciliation of fair value of plan assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value at beginning of period | $ | 1,454 |  |  | $ | 51 |  |  | $ | 1,493 |  |  | $ | 40 |  |  | $ | — |  |  | $ | — |
Actual return on plan assets | 175 |  |  | 6 |  |  | 83 |  |  | 4 |  |  |  |  |  |  |
Employer contributions | 2 |  |  | 15 |  |  |  |  |  | 15 |  |  | 5 |  |  | 5 |
Benefit payments | (118 | ) |  | (14 | ) |  | (122 | ) |  | (12 | ) |  | (5 | ) |  | (5 | )
Settlements |  |  |  | (1 | ) |  |  |  |  | (2 | ) |  |  |  |  |  |
New plans |  |  |  |  |  |  |  | 4 |  |  |  |  |
Acquisition |  |  | 12 |  |  |  |  |  |  |  |  |  |
Translation adjustments |  |  |  | 2 |  |  |  |  |  | 2 |  |  |  |  |  |  |
Fair value at end of period | $ | 1,513 |  |  | $ | 71 |  |  | $ | 1,454 |  |  | $ | 51 |  |  | $ | — |  |  | $ | — |
Funded status at end of period | $ | (217 | ) |  | $ | (306 | ) |  | $ | (228 | ) |  | $ | (258 | ) |  | $ | (99 | ) |  | $ | (91 | )
Amounts Recognized in the Balance Sheet [Table Text Block] | Amounts recognized in the balance sheet —
| Pension Benefits |  |  |  |
| 2017 |  | 2016 |  | OPEB - Non-U.S.
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | 2017 |  | 2016
Amounts recognized in the consolidated balance sheet: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Noncurrent assets | $ | — |  |  | $ | 3 |  |  | $ | — |  |  | $ | 2 |  |  | $ | — |  |  | $ | — |
Current liabilities |  |  |  | (13 | ) |  |  |  |  | (9 | ) |  | (5 | ) |  | (5 | )
Noncurrent liabilities | (217 | ) |  | (296 | ) |  | (228 | ) |  | (251 | ) |  | (94 | ) |  | (86 | )
Net amount recognized | $ | (217 | ) |  | $ | (306 | ) |  | $ | (228 | ) |  | $ | (258 | ) |  | $ | (99 | ) |  | $ | (91 | )
Amounts recognized in AOCI —
| Pension Benefits |  |  |  |
| 2017 |  | 2016 |  | OPEB - Non-U.S.
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | 2017 |  | 2016
Amounts recognized in AOCI: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss (gain) | $ | 559 |  |  | $ | 88 |  |  | $ | 560 |  |  | $ | 92 |  |  | $ | (8 | ) |  | $ | (10 | )
AOCI before tax | 559 |  |  | 88 |  |  | 560 |  |  | 92 |  |  | (8 | ) |  | (10 | )
Deferred taxes | (10 | ) |  | (22 | ) |  | (17 | ) |  | (24 | ) |  | 3 |  |  | 3 |
Net | $ | 549 |  |  | $ | 66 |  |  | $ | 543 |  |  | $ | 68 |  |  | $ | (5 | ) |  | $ | (7 | )
Aggregate Funding Levels [Table Text Block] | Aggregate funding levels — The following table presents information regarding the aggregate funding levels of our defined benefit pension plans at December 31:
| 2017 |  | 2016
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S.
Plans with fair value of plan assets in excess of obligations: |  |  |  |  |  |  |  |  |  |  |
Accumulated benefit obligation | $ | 16 |  |  | $ | 15 |  |  | $ | — |  |  | $ | 15 |
Projected benefit obligation | 16 |  |  | 15 |  |  |  |  |  | 15 |
Fair value of plan assets | 16 |  |  | 18 |  |  |  |  |  | 17 |
Plans with obligations in excess of fair value of plan assets: |  |  |  |  |  |  |  |  |
Accumulated benefit obligation | 1,714 |  |  | 334 |  |  | 1,682 |  |  | 272 |
Projected benefit obligation | 1,714 |  |  | 362 |  |  | 1,682 |  |  | 294 |
Fair value of plan assets | 1,497 |  |  | 53 |  |  | 1,454 |  |  | 34 |
Fair Value of Pension Plan Assets [Table Text Block] | Fair value of pension plan assets —
|  |  |  | Fair Value Measurements at December 31, 2017
|  |  |  | U.S. |  | Non-U.S.
Asset Category |  | Total |  | Level 1 |  | Level 2 |  | NAV (a) |  | Level 1 |  | Level 2 |  | Level 3
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. all cap (b) |  | $ | 62 |  |  | $ | 62 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
U.S. large cap |  | 61 |  |  |  |  |  |  |  |  | 61 |  |  |  |  |  |  |  |  |
U.S. small cap |  | 7 |  |  | 7 |  |  |  |  |  |  |  |  |  |  |
EAFE composite |  | 65 |  |  |  |  |  |  |  |  | 65 |  |  |  |  |  |  |  |  |
Emerging markets |  | 52 |  |  |  |  |  |  |  |  | 52 |  |  |  |  |  |  |  |  |  |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. bonds (c) |  | 61 |  |  |  |  |  | 61 |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | 464 |  |  |  |  |  | 226 |  |  | 238 |  |  |  |  |  |  |  |  |
U.S. Treasury strips |  | 281 |  |  |  |  |  | 281 |  |  |  |  |  |  |  |  |  |  |
Non-U.S. government securities |  | 26 |  |  |  |  |  |  |  |  |  |  |  |  | 26 |  |  |  |
Emerging market debt |  | 82 |  |  |  |  |  |  |  |  | 82 |  |  |  |  |  |  |  |  |
Alternative investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Insurance contracts (e) |  | 33 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33 |
Real estate |  | 35 |  |  |  |  |  |  |  |  | 35 |  |  |  |  |  |  |  |  |
Other (f) |  | 1 |  |  |  |  |  | (10 | ) |  |  |  |  |  | 11 |  |  |  |
Cash and cash equivalents |  | 354 |  |  |  |  |  | 353 |  |  |  |  |  |  |  | 1 |  |  |  |
Total |  | $ | 1,584 |  |  | $ | 69 |  |  | $ | 911 |  |  | $ | 533 |  |  | $ | — |  |  | $ | 38 |  |  | $ | 33 |
|  |  |  | Fair Value Measurements at December 31, 2016
|  |  |  | U.S. |  | Non-U.S.
Asset Category |  | Total |  | Level 1 |  | Level 2 |  | NAV (a) |  | Level 1 |  | Level 2 |  | Level 3
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. all cap (b) |  | $ | 76 |  |  | $ | 76 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
U.S. large cap |  | 102 |  |  |  |  |  |  |  |  | 102 |  |  |  |  |  |  |  |  |
U.S. small cap |  | 26 |  |  | 26 |  |  |  |  |  |  |  |  |  |  |
EAFE composite |  | 119 |  |  |  |  |  |  |  |  | 119 |  |  |  |  |  |  |  |  |
Emerging markets |  | 66 |  |  |  |  |  |  |  |  | 66 |  |  |  |  |  |  |  |  |  |
Fixed income securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. bonds (c) |  | 137 |  |  |  |  |  | 67 |  |  | 70 |  |  |  |  |  |  |  |  |
Corporate bonds |  | 419 |  |  |  |  |  | 198 |  |  | 221 |  |  |  |  |  |  |  |  |
U.S. Treasury strips |  | 269 |  |  |  |  |  | 269 |  |  |  |  |  |  |  |  |  |  |
Non-U.S. government securities |  | 25 |  |  |  |  |  |  |  |  |  |  |  |  | 25 |  |  |  |
Emerging market debt |  | 65 |  |  |  |  |  |  |  |  | 65 |  |  |  |  |  |  |  |  |
Alternative investments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Hedge fund of funds (d) |  | 66 |  |  |  |  |  |  |  |  | 66 |  |  |  |  |  |  |  |  |
Insurance contracts (e) |  | 16 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16 |
Real estate |  | 36 |  |  |  |  |  |  |  |  | 36 |  |  |  |  |  |  |  |  |
Other (f) |  | 10 |  |  |  |  |  | 1 |  |  |  |  |  |  | 9 |  |  |  |
Cash and cash equivalents |  | 73 |  |  |  |  |  | 72 |  |  |  |  |  |  | 1 |  |  |  |
Total |  | $ | 1,505 |  |  | $ | 102 |  |  | $ | 607 |  |  | $ | 745 |  |  | $ | — |  |  | $ | 35 |  |  | $ | 16 |
________________________________ Notes:
(a) | Certain assets are measured at fair value using the net asset value (NAV) per share (or its equivalent) practical expedient and have not been classified in the fair value hierarchy.
(b) | This category comprises a combination of small-, mid- and large-cap equity stocks that are allocated at the investment manager's discretion. Investments include common and preferred securities as well as equity funds that invest in these instruments.
(c) | This category represents a combination of high-yield and investment grade corporate bonds, sovereign bonds, Yankee bonds, asset-backed securities and U.S. government bonds. Investments include fixed income funds that invest in these instruments.
(d) | This category includes fund managers that invest in a well-diversified group of hedge funds where strategies include, but are not limited to, event driven, relative value, long/short market neutral, multistrategy and global macro. Investments may be made directly or through pooled funds.
(e) | This category comprises contracts placed with insurance companies where the underlying assets are invested in fixed interest securities.
(f) | Other assets in the U.S. represent interest rate derivatives which had a market value of $(10) at December 31, 2017 and $1 at December 31, 2016.
Reconciliation of Level 3 Assets [Table Text Block] |
|  | 2017 |  | 2016
|  | Non-U.S. |  | Non-U.S.
Reconciliation of Level 3 Assets |  | Insurance Contracts |  | Insurance Contracts
Fair value at beginning of period |  | $ | 16 |  |  | $ | 12 |
Actual gains relating to assets still held at the reporting date |  | 3 |  |  |
Purchases, sales and settlements |  | 1 |  |  |  |
Currency impact |  | 3 |  |  |  |
Transfers into (out of) Level 3 |  | 10 |  |  | 4 |
Fair value at end of period |  | $ | 33 |  |  | $ | 16 |
One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] | A one-percentage-point change in assumed health care cost trend rates would have the following effects for 2017:
| 1% Point Increase |  | 1% Point Decrease
Effect on total of service and interest cost components | $ | 1 |  |  | $ | (1 | )
Effect on OPEB obligations | 10 |  |  | (9 | )
Expected Future Benefit Payments [Table Text Block] | Estimated future benefit payments and contributions — Expected benefit payments by our pension and OPEB plans for each of the next five years and for the following five-year period are as follows:
|  | Pension Benefits |  | OPEB
Year |  | U.S. |  | Non-U.S. |  | Non-U.S.
2018 |  | $ | 135 |  |  | $ | 17 |  |  | $ | 5 |
2019 |  | 1,072 |  |  | 26 |  |  | 5 |
2020 |  | 44 |  |  | 17 |  |  | 5 |
2021 |  | 43 |  |  | 17 |  |  | 5 |
2022 |  | 43 |  |  | 19 |  |  | 5 |
2023 to 2027 |  | 204 |  |  | 105 |  |  | 27 |
Total |  | $ | 1,541 |  |  | $ | 201 |  |  | $ | 52 |
Multiemployer Pension Plans [Table Text Block] |
|  | Employer Identification Number/ Plan Number |  | PPA Zone Status |  | Funding Plan Pending/ Implemented |  | Contributions by Dana |  | Surcharge Imposed
Pension Fund |  |  | 2017 |  | 2016 |  |  | 2017 |  | 2016 |  | 2015 |
SPT |  | 23-6648508 / 499 |  | Green |  | Green |  | No |  | $ | 11 |  |  | $ | 10 |  |  | $ | 10 |  |  | No
Pension Plan [Member] |
Significant Weighted Average Assumptions Used [Table Text Block] | Significant assumptions — The significant weighted-average assumptions used in the measurement of pension benefit obligations at December 31 of each year and the net periodic benefit cost for each year are as follows:
| 2017 |  | 2016 |  | 2015
| U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S. |  | U.S. |  | Non-U.S.
Pension benefit obligations: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.55 | % |  | 2.25 | % |  | 3.92 | % |  | 2.48 | % |  | 4.13 | % |  | 2.83 | %
Net periodic benefit cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.24 | % |  | 2.34 | % |  | 3.29 | % |  | 2.56 | % |  | 3.81 | % |  | 3.75 | %
Rate of compensation increase | N/A |  |  | 3.33 | % |  | N/A |  |  | 3.12 | % |  | N/A |  |  | 4.83 | %
Expected return on plan assets | 6.00 | % |  | 5.92 | % |  | 6.50 | % |  | 5.42 | % |  | 7.00 | % |  | 5.87 | %
Other Postretirement Benefits Plan [Member] |
Significant Weighted Average Assumptions Used [Table Text Block] | The significant weighted-average assumptions used in the measurement of OPEB obligations at December 31 of each year and the net periodic benefit cost for each year are as follows:
| 2017 |  | 2016 |  | 2015
| Non-U.S. |  | Non-U.S. |  | Non-U.S.
OPEB benefit obligations: |  |  |  |  |  |  |  |
Discount rate | 3.41 | % |  | 3.69 | % |  | 3.96 | %
Net periodic benefit cost: |  |  |  |  |  |  |
Discount rate | 3.70 | % |  | 3.45 | % |  | 3.84 | %
Initial health care cost trend rate | 5.07 | % |  | 5.32 | % |  | 5.62 | %
Ultimate health care cost trend rate | 5.07 | % |  | 5.02 | % |  | 5.03 | %
Year ultimate reached | 2018 |  |  | 2018 |  |  | 2018 |

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- Definition Tabular disclosure of the effect of fair value measurements using significant unobservable inputs (Level 3) on changes in plan assets of pension plans and/or other employee benefit plans for the period. + 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)(4) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + 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=82843861&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of the quantitative and qualitative information related to multiemployer plans in which the employer participates. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + 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=82843861&loc=d3e1928-114920 + Details
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