CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - 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, 2018	[1]			(478)	(9,332,000,000)		(3,615,000,000)
Beginning balance at Dec. 31, 2018	[1]	$ 63,758		$ 19	$ 467	$ 86,253	$ (101,610)	$ 89,554	$ (11,275)	$ 63,407	$ 351
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	[1]	3,889	[2],[3],[4]					3,884		3,884	6
Other comprehensive income/(loss), net of tax	[1]	348	[3]						353	353	(4)
Cash dividends declared:
Common stock	[1]	(68)						(68)		(68)
Preferred stock	[1]	0						0		0
Noncontrolling interests	[1]	0
Share-based payment transactions (in shares)	[1]				26,000,000		7,000,000
Share-based payment transactions	[1]	78			$ 1	383	$ (306)			78
Purchases of common stock (in shares)	[1]						(180,000,000)
Purchases of common stock	[1]	(8,865)					$ (8,865)			(8,865)
Preferred stock conversions and redemptions (in shares)	[1]			(12)
Preferred stock conversions and redemptions	[1]	(1)		$ 0		(1)				(1)
Other	[1],[5]	19						19		19
Ending balance (in shares) at Mar. 31, 2019	[1]			(466)	(9,358,000,000)		(3,801,000,000)
Ending balance at Mar. 31, 2019	[1]	59,158		$ 19	$ 468	86,635	$ (110,781)	93,388	(10,923)	58,806	352
Beginning balance (in shares) at Dec. 31, 2019	[1]			(431)	(9,369,000,000)		(3,835,000,000)
Beginning balance at Dec. 31, 2019	[1]	63,447	[6]	$ 17	$ 468	87,428	$ (110,801)	97,670	(11,640)	63,143	303
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	[1]	3,410	[2],[3],[4]					3,401		3,401	9
Other comprehensive income/(loss), net of tax	[1]	(1,490)	[3]						(1,490)	(1,490)	0
Cash dividends declared:
Common stock	[1]	(71)						(71)		(71)
Preferred stock	[1]	0						0		0
Noncontrolling interests	[1]	0
Share-based payment transactions (in shares)	[1]				23,000,000		6,000,000
Share-based payment transactions	[1]	44			$ 1	252	$ (209)			44
Purchases of common stock (in shares)	[1]						0
Purchases of common stock	[1]	0					$ 0
Preferred stock conversions and redemptions (in shares)	[1]			(14)
Preferred stock conversions and redemptions	[1]	(1)		$ (1)		(1)	$ 0			(1)
Other (in shares)	[1]						0
Other	[1]	0				0		0		0	0
Ending balance (in shares) at Mar. 29, 2020	[1]			(417)	(9,393,000,000)		(3,841,000,000)
Ending balance at Mar. 29, 2020	[1]	$ 65,338	[6]	$ 17	$ 470	$ 87,680	$ (111,010)	$ 101,000	$ (13,131)	$ 65,026	$ 312

[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] The increase to Retained earnings represents the cumulative effect of the adoption of a new accounting standard in the first quarter of 2019 for leases. For additional information, see Notes to Consolidated Financial Statements––Note 1B. Basis of Presentation and Significant Accounting Policies: Adoption of New Accounting Standards in 2019 in our 2019 Financial Report.

[6] Amounts may not add due to rounding.