Business Acquisitions Business Acquisition (Assets Liabilities Acquired) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 25,274	$ 25,274	$ 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		139
Goodwill, Purchase Accounting Adjustments	13
BioPlus
Business Acquisition [Line Items]
Finite-lived Intangible Assets Acquired	820
Goodwill, Acquired During Period		$ 877
Goodwill, Purchase Accounting Adjustments	$ 149