Business Combinations and Asset Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 18, 2024	Jun. 30, 2023
Business Acquisition [Line Items]
Net Intangible	$ 1,708		$ 1,461
Goodwill	$ 4,788		4,609
Weighted- Average Remaining Amortization Period (Years)	9 years
Specialty Networks
Business Acquisition [Line Items]
Total identifiable intangible assets acquired		$ 439
Cash and equivalents		23
Trade receivables, net		19
Prepaid expenses and other		2
Other accrued liabilities		(15)
Deferred income taxes and other liabilities		(109)
Total identifiable net assets/(liabilities) acquired		359
Goodwill		856
Total net assets acquired		1,215
Business Combination, Acquisition Related Costs	$ 15
Payments to Acquire Businesses, Gross	1,200
Customer relationships
Business Acquisition [Line Items]
Net Intangible	$ 1,177		900
Weighted- Average Remaining Amortization Period (Years)	10 years
Customer relationships | Specialty Networks
Business Acquisition [Line Items]
Net Intangible		$ 404
Weighted- Average Remaining Amortization Period (Years)		14 years
Developed Technology Rights [Member]
Business Acquisition [Line Items]
Net Intangible	$ 371		395
Weighted- Average Remaining Amortization Period (Years)	7 years
Developed Technology Rights [Member] | Specialty Networks
Business Acquisition [Line Items]
Net Intangible		$ 20
Weighted- Average Remaining Amortization Period (Years)		9 years
Trademarks, trade names and patents
Business Acquisition [Line Items]
Net Intangible	$ 160		$ 166
Weighted- Average Remaining Amortization Period (Years)	7 years
Trademarks, trade names and patents | Specialty Networks
Business Acquisition [Line Items]
Net Intangible		$ 15
Weighted- Average Remaining Amortization Period (Years)		8 years