XML 52 R30.htm IDEA: XBRL DOCUMENT
v3.20.2

Pre-Production Costs Related to Long-Term Supply Agreements (Tables) | 6 Months Ended
--- | ---
Jul. 04, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Classification of Recoverable Customer E&D and Tooling Costs Related to Long-term Supply Agreements | The classification of recoverable customer E&D and tooling costs related to long-term supply agreements is shown below (in millions):
| July 4, 2020 |  | December 31, 2019
Current | $ | 189.6 |  |  | $ | 157.2 |
Long-term | 135.2 |  |  | 113.8 |
Recoverable customer E&D and tooling | $ | 324.8 |  |  | $ | 271.0 |

X
- Definition Balance sheet classification of recoverable customer engineering, development and tooling balances. + References No definition available. + Details
Name: | lear_ScheduleOfPreproductionCostsRelatedToLongTermSupplyArrangementsTableTextBlock
Namespace Prefix: | lear_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration