Consolidated Statements of Changes in Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Preferred stock	Common stock	Share-based awards	Additional paid-in capital	Retained earnings	Accumulated other comprehensive income/(loss)	Stock held in treasury, at cost
Beginning balance at Dec. 31, 2020		$ 11,203	$ 9	$ 3,468	$ 55,679	$ 112,947	$ (1,434)	$ (85,940)
Ending balance at Jun. 30, 2021		9,203	9	3,759	56,390	124,051	(1,889)	(89,633)
Beginning balance at Dec. 31, 2020		11,203	9	3,468	55,679	112,947	(1,434)	(85,940)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued		1,425	0
Redeemed		(2,675)
Issuance and amortization of share-based awards				2,180
Delivery of common stock underlying share-based awards				(1,625)	1,676
Forfeiture of share-based awards				(127)
Cancellation of share-based awards in satisfaction of withholding tax requirements					(983)
Issuance costs of redeemed preferred stock					25
Issuance of common stock in connection with acquisition					0
Other					1
Net earnings	$ 17,700					17,700
Accretion of redeemable noncontrolling interests						(69)
Dividends and dividend equivalents declared on common stock and share-based awards						(1,589)
Dividends declared on preferred stock	(317)					(317)
Preferred stock redemption premium						(41)
Other comprehensive income/(loss)	(522)						(522)
Repurchased	(4,700)							(4,700)
Reissued								11
Other								(5)
Ending balance at Sep. 30, 2021	106,297	9,953	9	3,896	56,398	128,631	(1,956)	(90,634)
Beginning balance at Jun. 30, 2021		9,203	9	3,759	56,390	124,051	(1,889)	(89,633)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued		750	0
Redeemed		0
Issuance and amortization of share-based awards				202
Delivery of common stock underlying share-based awards				(21)	23
Forfeiture of share-based awards				(44)
Cancellation of share-based awards in satisfaction of withholding tax requirements					(14)
Issuance costs of redeemed preferred stock					(1)
Issuance of common stock in connection with acquisition					0
Other					0
Net earnings	5,378					5,378
Accretion of redeemable noncontrolling interests						(4)
Dividends and dividend equivalents declared on common stock and share-based awards						(700)
Dividends declared on preferred stock	(94)					(94)
Preferred stock redemption premium						0
Other comprehensive income/(loss)	(67)						(67)
Repurchased	(1,000)							(1,000)
Reissued								1
Other								(2)
Ending balance at Sep. 30, 2021	106,297	9,953	9	3,896	56,398	128,631	(1,956)	(90,634)
Beginning balance at Dec. 31, 2021	109,926	10,703	9	4,211	56,396	131,811	(2,068)	(91,136)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued		0	0
Redeemed		0
Issuance and amortization of share-based awards				3,811
Delivery of common stock underlying share-based awards				(2,463)	2,494
Forfeiture of share-based awards				(80)
Cancellation of share-based awards in satisfaction of withholding tax requirements					(1,587)
Issuance costs of redeemed preferred stock					0
Issuance of common stock in connection with acquisition					1,730
Other					(2)
Net earnings	9,935					9,935
Accretion of redeemable noncontrolling interests						0
Dividends and dividend equivalents declared on common stock and share-based awards						(2,323)
Dividends declared on preferred stock	(356)					(356)
Preferred stock redemption premium						0
Other comprehensive income/(loss)	196						196
Repurchased	(2,000)							(2,000)
Reissued								20
Other								(11)
Ending balance at Sep. 30, 2022	119,290	10,703	9	5,479	59,031	139,067	(1,872)	(93,127)
Beginning balance at Jun. 30, 2022		10,703	9	5,245	58,993	136,998	(1,954)	(92,123)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issued		0	0
Redeemed		0
Issuance and amortization of share-based awards				311
Delivery of common stock underlying share-based awards				(44)	61
Forfeiture of share-based awards				(33)
Cancellation of share-based awards in satisfaction of withholding tax requirements					(23)
Issuance costs of redeemed preferred stock					0
Issuance of common stock in connection with acquisition					0
Other					0
Net earnings	3,069					3,069
Accretion of redeemable noncontrolling interests						0
Dividends and dividend equivalents declared on common stock and share-based awards						(893)
Dividends declared on preferred stock	(107)					(107)
Preferred stock redemption premium						0
Other comprehensive income/(loss)	82						82
Repurchased	(1,000)							(1,000)
Reissued								1
Other								(5)
Ending balance at Sep. 30, 2022	$ 119,290	$ 10,703	$ 9	$ 5,479	$ 59,031	$ 139,067	$ (1,872)	$ (93,127)