CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,772	$ 1,494	$ 1,545
Other comprehensive income (loss), after tax
Net unrealized losses on investments with an allowance for credit losses	(2)	(1)	(5)
Net unrealized gains (losses) on other investments	887	(262)	1,125
Total unrealized gains (losses) on investments	885	(263)	1,120
Impact of changes in discount rates used to measure long-duration contract liabilities	(161)	712	(318)
Unrealized losses on cash flow hedges	(7)		(5)
Pension and postretirement benefits	14	340	104
Foreign currency translation	144	(102)	60
Other comprehensive income (loss)	875	687	961
Comprehensive income	2,647	2,181	2,506
Amounts attributable to noncontrolling interests	(179)	(137)	(188)
Total comprehensive income attributable to Loews Corporation	$ 2,468	$ 2,044	$ 2,318