Consolidated Statements of Changes in Total Equity - USD ($) $ in Millions	Total	Shareholders' Equity	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss)	Retained Earnings	Treasury Stock	Other Non- controlling Interests
Balance at Dec. 31, 2022	$ 44,688	$ 44,675	$ 4	$ 30,233	$ (1,658)	$ 37,940	$ (21,844)	$ 13
Changes in Total Equity
Effect of issuing stock for employee benefit plans	100	100		205			(105)
Other comprehensive income (loss)	(220)	(220)			(220)
Net income	2,737	2,727				2,727		10
Common dividends declared	(731)	(731)				(731)
Repurchase of common stock	(1,104)	(1,104)		0			(1,104)
Other transactions impacting noncontrolling interests	(6)	(2)		(2)				(4)
Balance at Jun. 30, 2023	45,464	45,445	4	30,436	(1,878)	39,936	(23,053)	19
Balance at Dec. 31, 2022	66
Change in Redeemable Noncontrolling Interests
Other comprehensive loss	0
Net income	79
Other transactions impacting noncontrolling interests	(83)
Balance at Jun. 30, 2023	62
Balance at Mar. 31, 2023	44,518	44,502	4	30,332	(1,769)	38,841	(22,906)	16
Changes in Total Equity
Effect of issuing stock for employee benefit plans	105	105		106			(1)
Other comprehensive income (loss)	(109)	(109)			(109)
Net income	1,465	1,460				1,460		5
Common dividends declared	(365)	(365)				(365)
Repurchase of common stock	(146)	(146)		0			(146)
Other transactions impacting noncontrolling interests	(4)	(2)		(2)				(2)
Balance at Jun. 30, 2023	45,464	45,445	4	30,436	(1,878)	39,936	(23,053)	19
Balance at Mar. 31, 2023	78
Change in Redeemable Noncontrolling Interests
Other comprehensive loss	0
Net income	45
Other transactions impacting noncontrolling interests	(61)
Balance at Jun. 30, 2023	62
Balance at Dec. 31, 2023	46,244	46,223	4	30,669	(1,864)	41,652	(24,238)	21
Changes in Total Equity
Effect of issuing stock for employee benefit plans	264	264		379			(115)
Other comprehensive income (loss)	(578)	(578)			(578)
Net income	1,417	1,271				1,271		146
Common dividends declared	(791)	(791)				(791)
Repurchase of common stock	(5,057)	(5,057)		0			(5,057)
Other transactions impacting noncontrolling interests	28	0		0				28
Balance at Jun. 30, 2024	41,527	41,332	4	31,048	(2,442)	42,132	(29,410)	195
Balance at Dec. 31, 2023	107
Change in Redeemable Noncontrolling Interests
Other comprehensive loss	0
Net income	0
Other transactions impacting noncontrolling interests	(107)
Balance at Jun. 30, 2024	0
Balance at Mar. 31, 2024	41,350	41,181	4	30,292	(2,324)	40,978	(27,769)	169
Changes in Total Equity
Effect of issuing stock for employee benefit plans	115	115		116			(1)
Other comprehensive income (loss)	(118)	(118)			(118)
Net income	1,629	1,548				1,548		81
Common dividends declared	(394)	(394)				(394)
Repurchase of common stock	(1,000)	(1,000)		640			(1,640)
Other transactions impacting noncontrolling interests	(55)	0		0				(55)
Balance at Jun. 30, 2024	41,527	$ 41,332	$ 4	$ 31,048	$ (2,442)	$ 42,132	$ (29,410)	$ 195
Balance at Mar. 31, 2024	0
Change in Redeemable Noncontrolling Interests
Other comprehensive loss	0
Net income	0
Other transactions impacting noncontrolling interests	0
Balance at Jun. 30, 2024	$ 0