Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Millions		Total	Common Stock	Additional Paid-In Capital	Unearned Compensation	Treasury Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balance at Dec. 31, 2019			$ 1,466	$ 2,488	$ (2)	$ (22,063)	$ 22,501	$ (4,273)	$ 441
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 2,860					2,695		165
Other comprehensive income (loss), net of tax		(66)						(72)	6
Dividends	[1]						(1,502)		(152)
Stock-based compensation expense				107
Shares issued for stock options				400		462
Shares issued for restricted stock awards				(31)		31
Noncontrolling interests acquired									(99)
Treasury stock acquired						(1,476)
Other		(3)		5	1	1	5
Ending balance at Dec. 31, 2020			1,466	2,969	(1)	(23,045)	23,699	(4,345)	358
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,338					2,166		172
Other comprehensive income (loss), net of tax		(43)						(41)	(2)
Dividends	[1]						(1,515)		(166)
Stock-based compensation expense				135
Shares issued for stock options				188		248
Shares issued for restricted stock awards				(27)		27
Treasury stock acquired						(1,320)
Other				4		1
Ending balance at Dec. 31, 2021		971	1,466	3,269	(1)	(24,089)	24,350	(4,386)	362
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		1,967					1,785		182
Other comprehensive income (loss), net of tax		327						331	(4)
Dividends	[1]						(1,562)		(135)
Stock-based compensation expense				125
Shares issued for stock options				190		226
Shares issued for restricted stock awards				(40)		40
Treasury stock acquired						(1,308)
Other				2		3
Ending balance at Dec. 31, 2022		$ 806	$ 1,466	$ 3,546	$ (1)	$ (25,128)	$ 24,573	$ (4,055)	$ 405

[1] * Two dividends were declared in each of the first quarters of 2022, 2021 and 2020.