Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Millions		Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2020		$ 2,300	$ 863	$ 14,642	$ 16,120	$ (19,928)	$ (740)	$ 13,257	$ 191	$ 13,448
Net income (loss)					1,906			1,906	29	1,935
Other comprehensive loss							(435)	(435)	(1)	(436)
Redemption of preferred stock	[1]	(700)			(803)			(1,503)		(1,503)
Conversion of preferred stock to common stock	[1]	(1,600)	40	1,560
Purchase of common stock for treasury						(274)		(274)		(274)
Shares issued to benefit plans and for option exercises			4	273				277		277
Common dividends					(812)			(812)		(812)
Preferred dividends					(24)			(24)		(24)
Other, net	[2]				2	(61)		(59)	(7)	(66)
Balance at Dec. 31, 2021		0	907	16,475	16,389	(20,263)	(1,175)	12,333	212	12,545
Net income (loss)					1,316			1,316	70	1,386
Other comprehensive loss							(655)	(655)	(2)	(657)
Purchase of common stock for treasury						(221)		(221)		(221)
Shares issued to benefit plans and for option exercises			3	207				210		210
Common dividends					(926)			(926)		(926)
Other, net	[2]					(48)		(49)	(13)	(62)
Balance at Dec. 31, 2022		0	910	16,682	16,778	(20,532)	(1,830)	12,008	267	12,275
Net income (loss)					581			581	67	648
Other comprehensive loss							(218)	(218)	(1)	(219)
Shares issued to benefit plans and for option exercises			6	247				253		253
Common dividends					(968)			(968)		(968)
Other, net	[2]					(105)		(105)	(16)	(121)
Balance at Dec. 31, 2023		$ 0	$ 916	$ 16,929	$ 16,391	$ (20,637)	$ (2,048)	$ 11,551	$ 317	$ 11,868

[1] Refer to Note 14 (Shareholders’ Equity) in the accompanying notes to the consolidated financial statements for additional information.

[2] Treasury stock includes the deemed surrender to the Company of common stock to satisfy employee tax withholding obligations