CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions		Total		Preferred Stock [Member]	Common Stock [Member]	Add'l Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accum. Other Comp. Loss [Member]	Shareholders' Equity [Member]	Noncontrolling Interests [Member]
Beginning balance (in shares) at Dec. 31, 2017	[1]			524	9,275,000,000		(3,296,000,000)
Beginning balance at Dec. 31, 2017	[1]	$ 71,656		$ 21	$ 464	$ 84,278	$ (89,425)	$ 85,291	$ (9,321)	$ 71,308	$ 348
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	[1]	7,449	[2],[3],[4]					7,432		7,432	16
Other comprehensive income/(loss), net of tax	[1]	(693)	[4]						(682)	(682)	(11)
Cash dividends declared:
Common stock	[1]	(4,035)						(4,035)		(4,035)
Preferred stock	[1]	(1)						(1)		(1)
Noncontrolling interests	[1]	(7)									(7)
Share-based payment transactions (in shares)	[1]				28,000,000		3,000,000
Share-based payment transactions	[1]	648			$ 1	621	$ 25			648
Purchases of common stock (in shares)	[1]						(145,000,000)
Purchases of common stock	[1]	(6,063)					$ (6,063)			(6,063)
Preferred stock conversions and redemptions (in shares)	[1]			(22)
Preferred stock conversions and redemptions	[1]	(2)		$ (1)		(1)				(2)
Other	[1],[5]	1,172						1,172		1,173
Ending balance (in shares) at Jul. 01, 2018	[1]			502	9,303,000,000		(3,438,000,000)
Ending balance at Jul. 01, 2018	[1]	70,124		$ 20	$ 465	84,898	$ (95,463)	89,860	(10,003)	69,778	346
Beginning balance (in shares) at Apr. 01, 2018	[1]			513	9,299,000,000		(3,437,000,000)
Beginning balance at Apr. 01, 2018	[1]	70,541		$ 21	$ 465	84,599	$ (95,460)	89,961	(9,402)	70,184	358
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	[1]	3,879	[2],[3],[4]					3,872		3,872	7
Other comprehensive income/(loss), net of tax	[1]	(613)	[4]						(602)	(602)	(11)
Cash dividends declared:
Common stock	[1]	(3,970)						(3,970)		(3,970)
Preferred stock	[1]	0						0		0
Noncontrolling interests	[1]	(7)									(7)
Share-based payment transactions (in shares)	[1]				4,000,000
Share-based payment transactions	[1]	297			$ 0	300	(4)			297
Purchases of common stock	[1]	0					$ 0			0
Preferred stock conversions and redemptions (in shares)	[1]			(11)
Preferred stock conversions and redemptions	[1]	(1)				(1)				(1)
Other	[1]	(2)						(2)		(2)
Ending balance (in shares) at Jul. 01, 2018	[1]			502	9,303,000,000		(3,438,000,000)
Ending balance at Jul. 01, 2018	[1]	70,124		$ 20	$ 465	84,898	$ (95,463)	89,860	(10,003)	69,778	346
Beginning balance (in shares) at Dec. 31, 2018	[1]			478	9,332,000,000		(3,615,000,000)
Beginning balance at Dec. 31, 2018	[1]	63,758	[6]	$ 19	$ 467	86,253	$ (101,610)	89,554	(11,275)	63,407	351
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	[1]	8,945	[2],[3],[4]					8,929		8,929	15
Other comprehensive income/(loss), net of tax	[1]	(262)	[4]						(260)	(260)	(2)
Cash dividends declared:
Common stock	[1]	(4,062)						(4,062)		(4,062)
Preferred stock	[1]	(1)						(1)		(1)
Noncontrolling interests	[1]	(8)									(8)
Share-based payment transactions (in shares)	[1]				31,000,000		(7,000,000)
Share-based payment transactions	[1]	402			$ 2	712	$ (312)			402
Purchases of common stock (in shares)	[1]						(180,000,000)
Purchases of common stock	[1]	(8,865)								(8,865)
Preferred stock conversions and redemptions (in shares)	[1]			(20)
Preferred stock conversions and redemptions	[1]	(2)		$ (1)		(1)				(2)
Other	[1],[7]	19						19		19
Ending balance (in shares) at Jun. 30, 2019	[1]			458	9,363,000,000		(3,801,000,000)
Ending balance at Jun. 30, 2019	[1]	59,924	[6]	$ 18	$ 468	86,963	$ (110,786)	94,440	(11,535)	59,568	357
Beginning balance (in shares) at Mar. 31, 2019	[1]			466	9,358,000,000		(3,801,000,000)
Beginning balance at Mar. 31, 2019	[1]	59,158		$ 19	$ 468	86,635	$ (110,781)	93,388	(10,923)	58,806	352
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	[1]	5,056	[2],[3],[4]					5,046		5,046	10
Other comprehensive income/(loss), net of tax	[1]	(610)	[4]						(613)	(613)	3
Cash dividends declared:
Common stock	[1]	(3,994)						(3,994)		(3,994)
Preferred stock	[1]	0						0		0
Noncontrolling interests	[1]	(8)									(8)
Share-based payment transactions (in shares)	[1]				5,000,000		0
Share-based payment transactions	[1]	324			$ 0	329	$ (6)			324
Purchases of common stock (in shares)	[1]						0
Purchases of common stock	[1]	0					$ 0			0
Preferred stock conversions and redemptions (in shares)	[1]			(8)
Preferred stock conversions and redemptions	[1]	(1)				(1)				(1)
Other	[1]	0						0	0	0
Ending balance (in shares) at Jun. 30, 2019	[1]			458	9,363,000,000		(3,801,000,000)
Ending balance at Jun. 30, 2019	[1]	$ 59,924	[6]	$ 18	$ 468	$ 86,963	$ (110,786)	$ 94,440	$ (11,535)	$ 59,568	$ 357

[1] Amounts may not add due to rounding.

[2] Amounts may not add due to rounding.

[3] Amounts may not add due to rounding.

[4] Amounts may not add due to rounding.

[5] Represents the cumulative effect of the adoption of new accounting standards in the first quarter of 2018 for revenues, financial assets and liabilities, income tax accounting, and the reclassification of certain tax effects from Accumulated other comprehensive income. For additional information, see Notes to Consolidated Financial Statements––Note 1B. Basis of Presentation and Significant Accounting Policies: Adoption of New Accounting Standards in 2018 in our 2018 Financial Report.

[6] Amounts may not add due to rounding.

[7] Represents the cumulative effect of the adoption of a new accounting standard for leases in the first quarter of 2019. For additional information, see Note 1B. Basis of Presentation and Significant Accounting Policies: Adoption of New Accounting Standards.