Real Estate and Other Activities - Prospect - Additional Information (Detail) $ in Millions		1 Months Ended	3 Months Ended	12 Months Ended
	May 23, 2023 USD ($)	Aug. 31, 2019 USD ($) Hospital	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($)
Prospect [Member]
Business Combination [Line Items]
Recover of investments in Prospect				$ 61
Prospect [Member] | PHP Holdings [Member]
Business Combination [Line Items]
Asset impairment charges				$ 140
Loan impairment charges			$ 400
Prospect [Member] | Minimum [Member] | Level 3 Inputs [Member] | Income Valuation Approach [Member]
Business Combination [Line Items]
Market capitalization rate				8.25%
Prospect [Member] | Maximum [Member]
Business Combination [Line Items]
Backstop facility claims				$ 70
Prospect [Member] | Maximum [Member] | Level 3 Inputs [Member] | Income Valuation Approach [Member]
Business Combination [Line Items]
Market capitalization rate				8.50%
Prospect [Member]
Business Combination [Line Items]
Purchase price of acquisition		$ 1,600
Pay down of debt instruments	$ 375
Reconstitution of asset	1,700
Prospect [Member] | Mortgage Loans [Member]
Business Combination [Line Items]
First lien secured loan	150
Prospect [Member] | Maximum [Member]
Business Combination [Line Items]
First lien secured loan	$ 75
Acute Care Campus [Member] | Prospect [Member]
Business Combination [Line Items]
Number of facilities acquired | Hospital		14