CONSOLIDATED CONDENSED STATEMENTS OF EQUITY (Unaudited) - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	As Reported	Common Stock	Common Stock As Reported	Additional Paid-in Capital	Additional Paid-in Capital As Reported	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings As Reported	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Income (Loss) As Reported	Common Stock Held in Treasury	Common Stock Held in Treasury As Reported	Noncontrolling Interests	Noncontrolling Interests Cumulative Effect, Period of Adoption, Adjustment	Noncontrolling Interests As Reported
Balance at beginning of period at Dec. 31, 2022	$ 15,201	$ (277)	$ 15,478	$ 2	$ 2	$ 2,748	$ 2,748	$ 14,931	$ (213)	$ 15,144	$ (3,320)	$ (36)	$ (3,284)	$ (12)	$ (12)	$ 852	$ (28)	$ 880
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	404							375								29
Other comprehensive income	289										258					31
Dividends paid ($0.0625 per share)	(59)							(15)
Dividends paid ($0.0625 per share)																(44)
Purchase of subsidiary stock from noncontrolling interests	(24)															(24)
Purchases of Loews Corporation treasury stock	(486)													(486)
Stock-based compensation	(4)					(26)										22
Other	(7)					(6)		2								(3)
Balance at end of period at Mar. 31, 2023	15,314			2		2,716		15,293			(3,062)			(498)		863
Balance at beginning of period at Dec. 31, 2023	16,525			2		2,589		15,617			(2,497)			(7)		821
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	485							457								28
Other comprehensive income	101										93					8
Dividends paid ($0.0625 per share)	(70)							(14)
Dividends paid ($0.0625 per share)																(56)
Purchases of Loews Corporation treasury stock	(17)													(17)
Stock-based compensation	(14)					(33)										19
Other	(12)					(9)					3					(6)
Balance at end of period at Mar. 31, 2024	$ 16,998			$ 2		$ 2,547		$ 16,060			$ (2,401)			$ (24)		$ 814