10-K Consolidated Statements Of Changes in Equity - USD ($) shares in Millions, $ in Millions	Total	Previously Reported [Member]	Revision of Prior Period, Accounting Standards Update, Adjustment [Member]	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock [Member]	Common Stock [Member] Previously Reported [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member] Previously Reported [Member]	Retained Earnings [Member]	Retained Earnings [Member] Previously Reported [Member]	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings [Member] Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive (Loss) Income [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Previously Reported [Member]	Accumulated Other Comprehensive (Loss) Income [Member] Revision of Prior Period, Accounting Standards Update, Adjustment [Member]	Noncontrolling Interest [Member]
Balance (in shares), Beginning at Dec. 31, 2019						252.9
Total shareholders' equity, Beginning Balance at Dec. 31, 2019						$ 3		$ 9,448		$ 22,538				$ (296)
Noncontrolling interests, Beginning Balance at Dec. 31, 2019																	$ 0
Total equity, Beginning Balance at Dec. 31, 2019	$ 31,693
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	4,572		$ 0							4,572
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net income	4,572
Shareholders' other comprehensive income (loss)														446
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	0
Other Comprehensive Income (Loss), Net of Tax	446
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares						(9.4)
Repurchase and retirement of common stock	(2,700)							(353)		(2,347)
Dividends and dividend equivalents	(961)									(961)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						1.9
Issuance of common stock under employee stock plans, net of related tax benefits	330							330
Convertible debenture repurchases, conversions and tax adjustments	(181)							(181)
Balance (in shares), Ending at Dec. 31, 2020						245.4	245.4
Total shareholders' equity, Ending Balance at Dec. 31, 2020						$ 3	$ 3	9,244	$ 9,244	23,802	$ 23,802			138	$ 150	$ (12)
Noncontrolling interests, Ending Balance at Dec. 31, 2020																	0
Total equity, Ending Balance at Dec. 31, 2020	$ 33,187	$ 33,199	(12)
Noncontrolling Interest [Abstract]
Accounting Standards Update [Extensible Enumeration]	Accounting Standards Update 2018-12 [Member]
Shareholders' net income	$ 6,158		54							6,158
Net Income (Loss) Attributable to Noncontrolling Interest	(9)																(9)
Net income	6,149
Shareholders' other comprehensive income (loss)														(335)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(2)																(2)
Other Comprehensive Income (Loss), Net of Tax	(337)
Noncontrolling Interest, Period Increase (Decrease)	$ 79																79
Repurchase and retirement of common stock, shares	(5.1)					(5.1)
Repurchase and retirement of common stock	$ (1,900)					$ (1)		(192)		(1,707)
Dividends and dividend equivalents	(1,111)									(1,111)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						1.5
Issuance of common stock under employee stock plans, net of related tax benefits	355							355
Convertible debenture repurchases, conversions and tax adjustments	(259)							(259)
Balance (in shares), Ending at Dec. 31, 2021						241.8
Total shareholders' equity, Ending Balance at Dec. 31, 2021	36,095		35			$ 2		9,148		27,142			$ 27,119	(197)
Total shareholders' equity, Ending Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021												$ (23)
Noncontrolling interests, Ending Balance at Dec. 31, 2021	68																68
Total equity, Ending Balance at Dec. 31, 2021	36,163		35		$ 36,140
Total equity, Ending Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021				$ (23)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income										1,789
Net Income (Loss) Attributable to Noncontrolling Interest																	(10)
Net income	1,779
Shareholders' other comprehensive income (loss)														(1,049)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest																	(5)
Other Comprehensive Income (Loss), Net of Tax	(1,054)
Noncontrolling Interest [Abstract]
Noncontrolling Interest, Period Increase (Decrease)	3																3
Repurchase and retirement of common stock, shares						(1.2)
Repurchase and retirement of common stock	(545)					$ 0		(45)		(500)
Dividends and dividend equivalents	(312)									(312)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						0.5
Issuance of common stock under employee stock plans, net of related tax benefits	39							39
Convertible debenture repurchases, conversions and tax adjustments	9							9
Balance (in shares), Ending at Mar. 31, 2022						241.1
Total shareholders' equity, Ending Balance at Mar. 31, 2022						$ 2		9,151		28,096				(1,246)
Noncontrolling interests, Ending Balance at Mar. 31, 2022																	56
Total equity, Ending Balance at Mar. 31, 2022	36,059
Balance (in shares), Beginning at Dec. 31, 2021						241.8
Total shareholders' equity, Beginning Balance at Dec. 31, 2021	36,095		35			$ 2		9,148		27,142			27,119	(197)
Total shareholders' equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021												(23)
Noncontrolling interests, Beginning Balance at Dec. 31, 2021	68																68
Total equity, Beginning Balance at Dec. 31, 2021	36,163		35		36,140
Total equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021				(23)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	5,029
Net Income (Loss) Attributable to Noncontrolling Interest	(18)
Net income	5,011
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(11)
Other Comprehensive Income (Loss), Net of Tax	$ (2,593)
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares	(3.7)
Repurchase and retirement of common stock	$ (1,748)
Balance (in shares), Ending at Sep. 30, 2022						239.0
Total shareholders' equity, Ending Balance at Sep. 30, 2022	36,055					$ 2		9,169		29,611				(2,779)
Noncontrolling interests, Ending Balance at Sep. 30, 2022																	52
Balance (in shares), Beginning at Dec. 31, 2021						241.8
Total shareholders' equity, Beginning Balance at Dec. 31, 2021	36,095		35			$ 2		9,148		27,142			27,119	(197)
Total shareholders' equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021												$ (23)
Noncontrolling interests, Beginning Balance at Dec. 31, 2021	68																68
Total equity, Beginning Balance at Dec. 31, 2021	36,163		35		36,140
Total equity, Beginning Balance (Accounting Standards Update 2020-06 [Member]) at Dec. 31, 2021				$ (23)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	5,894		(131)							5,894
Net Income (Loss) Attributable to Noncontrolling Interest	(6)																(6)
Net income	5,888
Shareholders' other comprehensive income (loss)														(2,293)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(11)																(11)
Other Comprehensive Income (Loss), Net of Tax	(2,304)
Noncontrolling Interest [Abstract]
Noncontrolling Interest, Period Increase (Decrease)	$ 36																36
Repurchase and retirement of common stock, shares	(4.8)					(4.8)
Repurchase and retirement of common stock	$ (2,316)							(184)		(2,132)
Dividends and dividend equivalents	(1,234)									(1,234)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						1.0
Issuance of common stock under employee stock plans, net of related tax benefits	352							352
Convertible debenture repurchases, conversions and tax adjustments	(232)							(232)
Balance (in shares), Ending at Dec. 31, 2022						238.0
Total shareholders' equity, Ending Balance at Dec. 31, 2022	36,243		(64)			$ 2		9,084		29,647			29,647	(2,490)
Noncontrolling interests, Ending Balance at Dec. 31, 2022	87																87
Total equity, Ending Balance at Dec. 31, 2022	36,330		(64)		36,330
Balance (in shares), Beginning at Mar. 31, 2022						241.1
Total shareholders' equity, Beginning Balance at Mar. 31, 2022						$ 2		9,151		28,096				(1,246)
Noncontrolling interests, Beginning Balance at Mar. 31, 2022																	56
Total equity, Beginning Balance at Mar. 31, 2022	36,059
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income										1,637
Net Income (Loss) Attributable to Noncontrolling Interest																	(3)
Net income	1,634
Shareholders' other comprehensive income (loss)														(905)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest																	(3)
Other Comprehensive Income (Loss), Net of Tax	(908)
Noncontrolling Interest [Abstract]
Noncontrolling Interest, Period Increase (Decrease)	5																5
Repurchase and retirement of common stock, shares						(1.3)
Repurchase and retirement of common stock	(624)					$ 0		(48)		(576)
Dividends and dividend equivalents	(310)									(310)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						0.2
Issuance of common stock under employee stock plans, net of related tax benefits	111							111
Convertible debenture repurchases, conversions and tax adjustments	(80)							(80)
Balance (in shares), Ending at Jun. 30, 2022						240.0
Total shareholders' equity, Ending Balance at Jun. 30, 2022						$ 2		9,134		28,847				(2,151)
Noncontrolling interests, Ending Balance at Jun. 30, 2022																	55
Total equity, Ending Balance at Jun. 30, 2022	35,887
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	1,603									1,603
Net Income (Loss) Attributable to Noncontrolling Interest	(5)																(5)
Net income	1,598
Shareholders' other comprehensive income (loss)														(628)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(3)																(3)
Other Comprehensive Income (Loss), Net of Tax	(631)
Noncontrolling Interest [Abstract]
Noncontrolling Interest, Period Increase (Decrease)	5																5
Repurchase and retirement of common stock, shares						(1.2)
Repurchase and retirement of common stock	(579)					$ 0		(47)		(532)
Dividends and dividend equivalents	(307)									(307)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						0.2
Issuance of common stock under employee stock plans, net of related tax benefits	103							103
Convertible debenture repurchases, conversions and tax adjustments	(21)							(21)
Balance (in shares), Ending at Sep. 30, 2022						239.0
Total shareholders' equity, Ending Balance at Sep. 30, 2022	36,055					$ 2		9,169		29,611				(2,779)
Noncontrolling interests, Ending Balance at Sep. 30, 2022																	52
Balance (in shares), Beginning at Dec. 31, 2022						238.0
Total shareholders' equity, Beginning Balance at Dec. 31, 2022	36,243		(64)			$ 2		9,084		29,647			29,647	(2,490)
Noncontrolling interests, Beginning Balance at Dec. 31, 2022	87																87
Total equity, Beginning Balance at Dec. 31, 2022	36,330		(64)		36,330
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income										1,989
Net Income (Loss) Attributable to Noncontrolling Interest																	15
Net income	2,004
Shareholders' other comprehensive income (loss)														440
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest																	2
Other Comprehensive Income (Loss), Net of Tax	442
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares						(1.3)
Repurchase and retirement of common stock								(51)		(575)
Dividends and dividend equivalents	(354)									(354)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						0.4
Issuance of common stock under employee stock plans, net of related tax benefits	6							6		0
Convertible debenture repurchases, conversions and tax adjustments	(342)							(342)
Balance (in shares), Ending at Mar. 31, 2023						237.1
Total shareholders' equity, Ending Balance at Mar. 31, 2023						$ 2		8,697		30,707				(2,050)
Noncontrolling interests, Ending Balance at Mar. 31, 2023																	104
Total equity, Ending Balance at Mar. 31, 2023	37,460
Balance (in shares), Beginning at Dec. 31, 2022						238.0
Total shareholders' equity, Beginning Balance at Dec. 31, 2022	36,243		(64)			$ 2		9,084		29,647			$ 29,647	(2,490)
Noncontrolling interests, Beginning Balance at Dec. 31, 2022	87																87
Total equity, Beginning Balance at Dec. 31, 2022	36,330		$ (64)		$ 36,330
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	5,131
Net Income (Loss) Attributable to Noncontrolling Interest	29
Net income	5,160
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	0
Other Comprehensive Income (Loss), Net of Tax	$ (22)
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares	(3.8)
Repurchase and retirement of common stock	$ (1,748)
Balance (in shares), Ending at Sep. 30, 2023						234.9
Total shareholders' equity, Ending Balance at Sep. 30, 2023	38,423					$ 2		8,830		32,103				(2,512)
Noncontrolling interests, Ending Balance at Sep. 30, 2023	116																116
Total equity, Ending Balance at Sep. 30, 2023	38,539
Balance (in shares), Beginning at Mar. 31, 2023						237.1
Total shareholders' equity, Beginning Balance at Mar. 31, 2023						$ 2		8,697		30,707				(2,050)
Noncontrolling interests, Beginning Balance at Mar. 31, 2023																	104
Total equity, Beginning Balance at Mar. 31, 2023	37,460
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income										1,853
Net Income (Loss) Attributable to Noncontrolling Interest																	3
Net income	1,856
Shareholders' other comprehensive income (loss)														(116)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest																	0
Other Comprehensive Income (Loss), Net of Tax	(116)
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares						(1.4)
Repurchase and retirement of common stock	(652)							(52)		(600)
Dividends and dividend equivalents	(352)									(352)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						0.2
Issuance of common stock under employee stock plans, net of related tax benefits	116							116
Balance (in shares), Ending at Jun. 30, 2023						235.9
Total shareholders' equity, Ending Balance at Jun. 30, 2023						$ 2		8,761		31,608				(2,166)
Noncontrolling interests, Ending Balance at Jun. 30, 2023																	107
Total equity, Ending Balance at Jun. 30, 2023	38,312
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	1,289									1,289
Net Income (Loss) Attributable to Noncontrolling Interest	11																11
Net income	1,300
Shareholders' other comprehensive income (loss)														(346)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(2)																(2)
Other Comprehensive Income (Loss), Net of Tax	(348)
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares						(1.1)
Repurchase and retirement of common stock	(485)							(40)		(445)
Dividends and dividend equivalents	(349)									(349)
Issuance of common stock under employee stock plans, net of related tax benefits, Shares						0.1
Issuance of common stock under employee stock plans, net of related tax benefits	109							109
Balance (in shares), Ending at Sep. 30, 2023						234.9
Total shareholders' equity, Ending Balance at Sep. 30, 2023	38,423					$ 2		$ 8,830		$ 32,103				$ (2,512)
Noncontrolling interests, Ending Balance at Sep. 30, 2023	116																$ 116
Total equity, Ending Balance at Sep. 30, 2023	$ 38,539