Consolidated Statements Of Changes in Equity - USD ($) shares in Millions, $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [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]	Noncontrolling Interest [Member]
Balance (in shares), Beginning at Dec. 31, 2021				241.8
Total shareholders' equity, Beginning Balance at Dec. 31, 2021				$ 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
Total equity, Beginning Balance at Dec. 31, 2021	$ 36,163		$ 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						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					0
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				$ 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
Total equity, Beginning Balance at Dec. 31, 2021	36,163		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	3,426
Net Income (Loss) Attributable to Noncontrolling Interest	(13)
Net income	3,413
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(8)
Other Comprehensive Income (Loss), Net of Tax	$ (1,962)
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares	(2.5)
Repurchase and retirement of common stock	$ (1,169)
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
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					1,637
Net Income (Loss) Attributable to Noncontrolling Interest	(3)									(3)
Net income	1,634
Shareholders' other comprehensive income (loss)									(905)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	(3)									(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
Balance (in shares), Beginning at Dec. 31, 2022				238.0
Total shareholders' equity, Beginning Balance at Dec. 31, 2022	36,243			$ 2	9,084			29,647	(2,490)
Noncontrolling interests, Beginning Balance at Dec. 31, 2022	87									87
Total equity, Beginning Balance at Dec. 31, 2022	36,330		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)
Repurchase and retirement of common stock, including excise tax	(626)
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			$ 2	9,084			$ 29,647	(2,490)
Noncontrolling interests, Beginning Balance at Dec. 31, 2022	87									87
Total equity, Beginning Balance at Dec. 31, 2022	36,330		$ 36,330
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders' net income	3,842
Net Income (Loss) Attributable to Noncontrolling Interest	18
Net income	3,860
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	2
Other Comprehensive Income (Loss), Net of Tax	$ 326
Noncontrolling Interest [Abstract]
Repurchase and retirement of common stock, shares	(2.7)
Repurchase and retirement of common stock	$ (1,268)
Balance (in shares), Ending at Jun. 30, 2023				235.9
Total shareholders' equity, Ending Balance at Jun. 30, 2023	38,205			$ 2	8,761	31,608			(2,166)
Noncontrolling interests, Ending Balance at Jun. 30, 2023	107									107
Total equity, Ending Balance at Jun. 30, 2023	38,312
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					1,853
Net Income (Loss) Attributable to Noncontrolling Interest	3									3
Net income	1,856
Shareholders' other comprehensive income (loss)									(116)
Other Comprehensive (Loss) Income, Attributable to Noncontrolling Interest	0									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	38,205			$ 2	$ 8,761	$ 31,608			$ (2,166)
Noncontrolling interests, Ending Balance at Jun. 30, 2023	107									$ 107
Total equity, Ending Balance at Jun. 30, 2023	$ 38,312