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Solar Energy Systems, Net - Components of Solar Energy Systems, Net (Parenthetical) (Detail) - Solar Energy Systems [Member] - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Finance Leased Assets [Line Items]
Gross finance leased assets	$ 36.0	$ 36.0
Accumulated depreciation and amortization on finance leased assets	$ 4.7	$ 3.8

X

- Definition

Finance lease, right-of-use assets gross.

+ References

No definition available.

+ Details

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Namespace Prefix:	tsla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Finance leased assets accumulated depreciation and amortization.

+ References

No definition available.

+ Details

Name:	tsla_FinanceLeasedAssetsAccumulatedDepreciationAndAmortization
Namespace Prefix:	tsla_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Finance leased assets.

+ References

No definition available.

+ Details

Name:	tsla_FinanceLeasedAssetsLineItems
Namespace Prefix:	tsla_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_PropertyPlantAndEquipmentByTypeAxis=tsla_SolarEnergySystemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: