Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables summarizes the types of assets and liabilities measured at fair value on a recurring basis by level within the fair value hierarchy (in millions):

	December 31, 2022
	Level 1		Level 2		Level 3		Total
Assets
Money market funds	$	169	$	-	$	-	$	169
U.S. treasury securities		-		314		-		314
Corporate securities and commercial paper		-		631		-		631
U.S. government agency securities		-		20		-		20
Certificate of deposit		-		4		-		4
Total assets measured at fair value	$	169	$	969	$	-	$	1,138
Liabilities
Liability for sale of future royalties	$	-	$	-	$	17	$	17
Total liabilities measured at fair value	$	-	$	-	$	17	$	17

	December 31, 2021
	Level 1		Level 2		Level 3		Total
Assets
Money market funds	$	148	$	-	$	-	$	148
U.S. treasury securities		-		112		-		112
Corporate securities and commercial paper		-		421		-		421
Total assets measured at fair value	$	148	$	533	$	-	$	681
Liabilities
Liability for sale of future royalties	$	-	$	-	$	5	$	5
Total liabilities measured at fair value	$	-	$	-	$	5	$	5

Summary of Changes of Liabilities for Sale of Future Royalties

The liability for sale of future royalties is reported in Other noncurrent liabilities in the Consolidated Balance Sheets and changes were as follows (in millions):

	Year Ended December 31
	2022		2021
Beginning balance	$	5	$	-
Cash received		10		5
Interest accretion		2		-
Ending balance	$	17	$	5