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Net Product Sales - Schedule of Changes in Balances of Receivables and Contract Liabilities (Details) $ in Millions	3 Months Ended
	Mar. 31, 2026 USD ($)
Change in Contract with Customer, Liability Refund [Roll Forward]
Balance at December 31, 2025	$ (509)
Balance at March 31, 2026	(470)
Net product sales
Change in Contract with Customer, Liability Refund [Roll Forward]
Balance at December 31, 2025	(509)
Provision related to sales made in current period	(9)
Provision related to sales made in prior periods	0
Payments and returns related to sales made in current period	0
Payments and returns related to sales made in prior year	48
Balance at March 31, 2026	$ (470)

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- Definition

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+ References

No definition available.

+ Details

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- Definition

Contract with Customer, Liability, Provision Related To Sales

+ References

No definition available.

+ Details

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- Definition

Contract with Customer, Liability, Provisions Made in Current Year

+ References

No definition available.

+ Details

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- Definition

Contract with Customer, Liability, Provisions Made in Prior Years

+ References

No definition available.

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- Definition

Contract with Customer, Refund Liability, Payments And Returns Related To Prior Period Sales

+ References

No definition available.

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- Definition

Amount of liability for consideration received or receivable from customer which is not included in transaction price, when consideration is expected to be refunded to customer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 27
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479777/606-10-55-27

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