Revenue from Contracts with Customers Contract Assets and Liabilities (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Accounts receivable, net	$ 900.1	$ 900.1		$ 818.5
Deferred revenue, current	17.1	17.1		16.6
Deferred revenue, noncurrent	42.1	42.1		$ 70.4
Increase (decrease) in accounts receivable		81.6
Contract liability, current, increase (decrease)		0.5
Contract liability, noncurrent, increase (decrease)		(28.3)
Contract with customer, liability, revenue recognized		13.6	$ 25.8
Preproduction Costs Related to Long-Term Supply Arrangements, Costs Capitalized	19.8	19.8
Cancellation of expected future vehicle program
Preproduction Costs Related to Long-Term Supply Arrangements, Period Increase (Decrease)	(19.8)
Preproduction Cost Reimbursements
Deferred Revenue	19.8	$ 19.8
Cancellation of expected future vehicle program
Deferred Revenue, Period Increase (Decrease)	$ (19.8)

Contract Liabilities Increase (Decrease), Noncurrent, Net of Contract Liabilities Amortized into Revenue

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- Definition

Contract Liability Increase (Decrease), Current

+ References

No definition available.

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- Definition

Preproduction Costs Related to Long-Term Supply Arrangements, Period Increase (Decrease)

+ References

No definition available.

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(26)(c))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.

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- Definition

Amount of increase (decrease) in deferred revenue.

+ References

No definition available.

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- Definition

The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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-Paragraph 28
-Subparagraph (a)
-SubTopic 10
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- Definition

The carrying amount as of the balance sheet date of capitalized preproduction costs incurred on long-term supply arrangements, including recoverable costs to design and develop products.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 340
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
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- Definition

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
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-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

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