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Commitments and Contingencies - Other Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Jun. 30, 2021
Loss Contingencies [Line Items]
Maximum liability, guarantees	$ 3,100	$ 3,400
Takata Passenger-side Airbags
Loss Contingencies [Line Items]
Increase in product warranty accrual	1,100
Accrued Liabilities, Current and Other Liabilities, Noncurrent
Loss Contingencies [Line Items]
Product liability	$ 589	$ 611

X

- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Undiscounted amount of the accrual for damages arising from third-party use of the entity's product or process.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q1)
-URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

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- Definition

Amount of increase (decrease) in the standard product warranty accrual. Excludes extended product warranties.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
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-URI http://asc.fasb.org/extlink&oid=123368208&loc=d3e12565-110249

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