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Strategic Partnership Agreement, Call Option Strike Price

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No definition available.

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- Definition

Fair value portion of asset recognized for present right to economic benefit.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of transfer of financial instrument classified as an asset into (out of) level 3 of the fair value hierarchy.

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- Definition

Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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- Definition

Amount of cumulative increase (decrease) in fair value of hedged liability in fair value hedge, attributable to hedged risk. Excludes cumulative basis adjustment related to foreign exchange risk.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Fair value as of the balance sheet date of all derivative assets designated as interest rate fair value hedging instruments.

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Fair value as of the balance sheet date of all derivative liabilities designated as interest rate fair value hedging instruments.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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FAIR VALUE - Narrative (Details) - USD ($)	3 Months Ended			9 Months Ended		12 Months Ended
FAIR VALUE - Narrative (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value measurement, transfers into or out of level 3				$ 0	$ 0
Swap asset				82,000,000
Swap liability		$ 129,000,000		34,000,000		$ 129,000,000
Impairment of indefinite-lived intangible assets	$ 32,000,000	200,000,000	$ 0	32,000,000	$ 0
WCAS, Cohort Of Clinics \| Minimum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Call option strike price				3,000,000,000
WCAS, Cohort Of Clinics \| Maximum
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Call option strike price				5,000,000,000
Put Option
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of financial liability		883,000,000		1,350,000,000		883,000,000
Call Option
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of financial asset		10,000,000		13,000,000		10,000,000
Commercial Paper
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commercial paper borrowings		0		0		0
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt outstanding		11,700,000,000		12,600,000,000		11,700,000,000
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt outstanding		11,200,000,000		12,300,000,000		11,200,000,000
Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cumulative, aggregate adjustment to the carrying value of senior note				48,000,000
Recurring Basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value		21,101,000,000		$ 23,000,000,000		$ 21,101,000,000
Unobservable Inputs (Level 3) \| Investments \| Fair Value Risk
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Concentration risk (as percent)				1.80%		1.50%
Unobservable Inputs (Level 3) \| Recurring Basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets, fair value		$ 322,000,000		$ 410,000,000		$ 322,000,000