CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 143	$ 246	$ 715	$ 1,332
Other comprehensive income (loss), after tax
Net unrealized losses on investments with an allowance for credit losses	(2)		(8)
Net unrealized losses on other investments	(1,327)	(138)	(4,284)	(465)
Total unrealized losses on investments	(1,329)	(138)	(4,292)	(465)
Unrealized gains on cash flow hedges	4	2	28	14
Pension and postretirement benefits	6	16	18	32
Foreign currency translation	(106)	(33)	(189)	(19)
Other comprehensive loss	(1,425)	(153)	(4,435)	(438)
Comprehensive income (loss)	(1,282)	93	(3,720)	894
Amounts attributable to noncontrolling interests	119	(9)	379	(49)
Total comprehensive income (loss) attributable to Loews Corporation	$ (1,163)	$ 84	$ (3,341)	$ 845