Business Acquisitions Business Acquisition (Assets Liabilities Acquired) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 25,273	$ 24,383
Integra Managed Care [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	89
Indefinite-lived Intangible Assets Acquired	250
Goodwill, Acquired During Period	125
BioPlus
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	809
Goodwill, Acquired During Period	$ 728