Fair Value of Financial Instruments - Additional Information (Detail) SFr in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2025 USD ($) Health_Center	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 CHF (SFr)
Steward's Equity [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Equity impairment charges					$ 90
Equity investments percentage				9.90%	9.90%	9.90%
Impairment charge, working capital loans and other secured loans	$ 425	$ 625
Steward's Equity [Member] | Equity Securities [Member] | International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Remaining equity investment percentage				90.10%	90.10%	90.10%
Steward and International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Real estate investments, joint ventures					$ 219
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Weighted Average [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments measurement input				0.1503
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] | Minimum [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments measurement input				0.15
Fair Value, Inputs, Level 3 [Member] | Steward's Equity [Member] | Measurement Input, Discount Rate [Member] | Maximum [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Investments measurement input				0.16
Springstone Inc. and International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Unfavorable fair market value adjustment on investment				$ 790
PHP Holdings [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Discount for lack of marketability percentage on Springstone equity investment				14.20%
Swiss Medical Network [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Favorable fair market value adjustment on investment | SFr						SFr 20
Colombia [Member] | Springstone Inc. and International Joint Venture [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Unfavorable fair market value adjustment on investment			$ 169
Fair Value, Recurring | Colombia [Member]
Financial Instruments Measured At Fair Value On Recurring Basis [Line Items]
Number of facilities acquired | Health_Center			3