Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Cumulative Effect Adjustment	[1]	Common Stock, Par	Common Stock, Surplus	Retained Earnings	Retained Earnings Cumulative Effect Adjustment	[1]	Treasury Stock	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2019	$ 13,978	$ (37)		$ 482	$ 3,039	$ 31,633	$ (37)		$ (17,358)	$ (3,818)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,331					1,331
Cash dividends declared	(633)					(633)
Equity-based awards	61				11				50
Shares purchased	(501)								(501)
Other comprehensive income (loss)	107									107
Ending balance at Jun. 28, 2020	14,306			482	3,050	32,294			(17,809)	(3,711)
Beginning balance at Mar. 29, 2020	13,609			482	3,015	31,983			(17,809)	(4,062)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	625					625
Cash dividends declared	(314)					(314)
Equity-based awards	35				35				0
Other comprehensive income (loss)	351									351
Ending balance at Jun. 28, 2020	14,306			482	3,050	32,294			(17,809)	(3,711)
Beginning balance at Dec. 31, 2020	15,661			482	3,124	33,498			(17,893)	(3,550)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,445					1,445
Cash dividends declared	(670)					(670)
Equity-based awards	141				70				71
Shares purchased	(1,359)								(1,359)
Other comprehensive income (loss)	103									103
Ending balance at Jul. 04, 2021	15,321			482	3,194	34,273			(19,181)	(3,447)
Beginning balance at Apr. 04, 2021	15,340			482	3,152	33,869			(18,585)	(3,578)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	737					737
Cash dividends declared	(333)					(333)
Equity-based awards	61				42				19
Shares purchased	(615)								(615)
Other comprehensive income (loss)	131									131
Ending balance at Jul. 04, 2021	$ 15,321			$ 482	$ 3,194	$ 34,273			$ (19,181)	$ (3,447)

[1] Reflects the cumulative effect of Accounting Standards Update (ASU) 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, which we adopted on January 1, 2020.