Acquisitions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Subsidiary, Sale of Stock [Line Items]
Investment losses	$ (81)	$ (81)	$ (53)
Assets	86,348	81,943
Liabilities	$ 66,707	$ 64,006
Loews Hotels And Co
Subsidiary, Sale of Stock [Line Items]
Payments to acquire an additional equity interest in joint venture property			46
Loews Hotels And Co | Joint venture
Subsidiary, Sale of Stock [Line Items]
Investment losses			46
Gain on investments, net of tax			36
Assets			232
Liabilities			$ 120