Business Combinations and Asset Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Mar. 31, 2026	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Nov. 03, 2025	May 30, 2025	Apr. 01, 2025	Jan. 30, 2025	Dec. 02, 2024
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization	$ 2,258			$ 2,473		$ 2,258
Goodwill	11,415			9,691		11,415
Goodwill	$ 11,415			9,691		$ 11,415
Intangible Asset, Finite-Lived, Remaining Amortization Period	9 years					9 years
Solaris Health
Business Combination [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	5 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested	$ 500
GIA Common Stock
Business Combination [Line Items]
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition	2 years					4 years
ION
Business Combination [Line Items]
Payments to Acquire Businesses, Gross					$ 1,100
Goodwill												$ 1,100
Goodwill												$ 1,100
Business Combination, Acquisition-Related Cost, Expense	$ 2				6	$ 4	$ 25
GIA [Member]
Business Combination [Line Items]
Payments to Acquire Businesses, Gross				2,800
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived											$ 223
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent											53
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities											(1)
Business Combination, Recognized Asset Acquired, Receivable, Current											176
Business Combination, Recognized Asset Acquired, Inventory, Current											21
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current											14
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment											75
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent											312
Business Combination, Recognized Liability Assumed, Accounts Payable, Current											(89)
Business Combination, Recognized Liability Assumed, Other Liability, Current											(174)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities											(15)
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent											(888)
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)											(293)
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value											0
Goodwill											3,078
Goodwill											3,078
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net											$ 2,785
Business Combination, Acquisition-Related Cost, Expense	$ 1				59	$ 8	$ 69
Business Combination, Voting Equity Interest Acquired, Percentage											73.00%
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value					$ 739
Discount Rate, fair value inputs	9.50%					9.50%
Urology America
Business Combination [Line Items]
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived									$ 33
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent									4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities									0
Business Combination, Recognized Asset Acquired, Receivable, Current									23
Business Combination, Recognized Asset Acquired, Inventory, Current									3
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current									3
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment									27
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent									41
Business Combination, Recognized Liability Assumed, Accounts Payable, Current									(20)
Business Combination, Recognized Liability Assumed, Other Liability, Current									(12)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities									(6)
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent									(45)
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)									51
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value									(9)
Goodwill									(339)
Goodwill									(339)
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net									$ 381
ADS
Business Combination [Line Items]
Payments to Acquire Businesses, Gross			$ 1,000
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived										$ 500
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent										14
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities										0
Business Combination, Recognized Asset Acquired, Receivable, Current										101
Business Combination, Recognized Asset Acquired, Inventory, Current										78
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current										2
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment										1
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent										377
Business Combination, Recognized Liability Assumed, Accounts Payable, Current										(104)
Business Combination, Recognized Liability Assumed, Other Liability, Current										(391)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities										0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent										(106)
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)										472
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value										0
Goodwill										577
Goodwill										577
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net										1,049
Business Combination, Acquisition-Related Cost, Expense	$ 6					$ 13
ADS | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow
Business Combination [Line Items]
Intangible Assets Measurement Input	20.00%
Solaris Health
Business Combination [Line Items]
Payments to Acquire Businesses, Gross	$ 1,900
Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived								$ 272
Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent								55
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities								0
Business Combination, Recognized Asset Acquired, Receivable, Current								236
Business Combination, Recognized Asset Acquired, Inventory, Current								23
Business Combination, Recognized Asset Acquired, Prepaid Expense and Other Asset, Current								74
Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment								81
Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent								191
Business Combination, Recognized Liability Assumed, Accounts Payable, Current								(105)
Business Combination, Recognized Liability Assumed, Other Liability, Current								(193)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities								0
Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent								(164)
Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less)								470
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value								0
Goodwill								1,661
Goodwill								1,661
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net								2,131
Business Combination, Acquisition-Related Cost, Expense	$ 4					$ 44
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 210
Discount Rate, fair value inputs	7.50%					7.50%
Solaris Health | Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow
Business Combination [Line Items]
Intangible Assets Measurement Input	7.00%
Specialty Alliance
Business Combination [Line Items]
Business Combination, Voting Equity Interest Acquired, Percentage	76.00%					76.00%
Customer Contracts | GIA [Member]
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization											$ 0
Customer Contracts | Solaris Health
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization								0
Trademarks and Trade Names | GIA [Member]
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization											$ 23
Intangible Asset, Finite-Lived, Remaining Amortization Period											10 years
Trademarks and Trade Names | Urology America
Business Combination [Line Items]
Intangible Asset, Finite-Lived, Remaining Amortization Period									10 years
Trademarks and Trade Names | Solaris Health
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization								$ 233
Intangible Asset, Finite-Lived, Remaining Amortization Period								10 years
Noncompete Agreements
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization	$ 82			51		$ 82
Intangible Asset, Finite-Lived, Remaining Amortization Period	4 years					4 years
Noncompete Agreements | GIA [Member]
Business Combination [Line Items]
Intangible Asset, Finite-Lived, Remaining Amortization Period											5 years
Noncompete Agreements | Urology America
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization									$ 0
Noncompete Agreements | ADS
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization										0
Noncompete Agreements | Solaris Health
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization								$ 39
Intangible Asset, Finite-Lived, Remaining Amortization Period								5 years
Customer-Related Intangible Assets
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization	$ 861			1,237		$ 861
Intangible Asset, Finite-Lived, Remaining Amortization Period	10 years					10 years
Customer-Related Intangible Assets | Urology America
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization									0
Customer-Related Intangible Assets | ADS
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization										472
Customer-Related Intangible Assets | ADS | Minimum
Business Combination [Line Items]
Intangible Asset, Finite-Lived, Remaining Amortization Period	10 years					10 years
Trademarks And Patents Member
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization	$ 1,051			$ 881		$ 1,051
Intangible Asset, Finite-Lived, Remaining Amortization Period	8 years					8 years
Trademarks And Patents Member | GIA [Member]
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization											$ 200
Trademarks And Patents Member | Urology America
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization									$ 33
Trademarks And Patents Member | ADS
Business Combination [Line Items]
Intangible Asset, Finite-Lived, after Accumulated Amortization										$ 28
Trademarks And Patents Member | ADS | Minimum
Business Combination [Line Items]
Intangible Asset, Finite-Lived, Remaining Amortization Period	2 years					2 years