Contingent Consideration (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]
Business Combination, Contingent Consideration, Liability Beginning Balance	$ 149
Contingent consideration net expense (benefit)	12	$ 12
Payment of contingent consideration	(68)
Business Combination, Contingent Consideration, Liability Ending Balance	93
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Business Combination, Contingent Consideration, Liability	93
All Business Acquisitions
Business Combination, Contingent Consideration Arrangements [Abstract]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	359
Valuation Technique, Discounted Cash Flow [Member] | R&D, Regulatory and Commercialization-based Milestone [Member]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]
Business Combination, Contingent Consideration, Liability Ending Balance	13
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Business Combination, Contingent Consideration, Liability	13
Valuation Technique, Discounted Cash Flow [Member] | revenue-based payments [Member]
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration [Abstract]
Business Combination, Contingent Consideration, Liability Ending Balance	80
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Business Combination, Contingent Consideration, Liability	$ 80
contingent consideration liability, probability of payment	100.00%
Minimum [Member] | Valuation Technique, Discounted Cash Flow [Member] | R&D, Regulatory and Commercialization-based Milestone [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
contingent consideration liability, probability of payment	10.00%
Discount Rate, Fair Value Input	1.00%
Minimum [Member] | Valuation Technique, Discounted Cash Flow [Member] | revenue-based payments [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Discount Rate, Fair Value Input	6.00%
Maximum [Member] | Valuation Technique, Discounted Cash Flow [Member] | R&D, Regulatory and Commercialization-based Milestone [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
contingent consideration liability, probability of payment	25.00%
Discount Rate, Fair Value Input	2.00%
Maximum [Member] | Valuation Technique, Discounted Cash Flow [Member] | revenue-based payments [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Discount Rate, Fair Value Input	14.00%
Weighted Average [Member] | Valuation Technique, Discounted Cash Flow [Member] | R&D, Regulatory and Commercialization-based Milestone [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
contingent consideration liability, probability of payment	22.00%
Discount Rate, Fair Value Input	2.00%
Weighted Average [Member] | Valuation Technique, Discounted Cash Flow [Member] | revenue-based payments [Member]
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
contingent consideration liability, probability of payment	100.00%
Discount Rate, Fair Value Input	7.00%