Consolidated Statement of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock, Par	Common Stock, Surplus	Retained Earnings	Treasury Stock	AOCL
Beginning balance at Dec. 31, 2018	$ 11,732	$ 482	$ 2,946	$ 29,326	$ (17,244)	$ (3,778)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	1,551			1,551
Cash dividends declared	(586)			(586)
Equity-based awards	62		13		49
Shares purchased	(184)				(184)
Other comprehensive income (loss)	302					302
Ending balance at Jun. 30, 2019	12,877	482	2,959	30,291	(17,379)	(3,476)
Beginning balance at Mar. 31, 2019	12,234	482	2,937	29,781	(17,283)	(3,683)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	806			806
Cash dividends declared	(296)			(296)
Equity-based awards	24		22		2
Shares purchased	(98)				(98)
Other comprehensive income (loss)	207					207
Ending balance at Jun. 30, 2019	12,877	482	2,959	30,291	(17,379)	(3,476)
Beginning balance at Dec. 31, 2019	13,577	482	3,039	31,633	(17,358)	(4,219)
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)	92					92
Ending balance at Jun. 28, 2020	13,890	482	3,050	32,294	(17,809)	(4,127)
Beginning balance at Mar. 29, 2020	13,200	482	3,015	31,983	(17,809)	(4,471)
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)	344					344
Ending balance at Jun. 28, 2020	$ 13,890	$ 482	$ 3,050	$ 32,294	$ (17,809)	$ (4,127)