Consolidated Statements of Equity - USD ($) shares in Millions, $ in Millions	Total	Common stock	Treasury stock	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss
Beginning balance at Dec. 31, 2016	$ 4,636	$ 18	$ (10,852)	$ 13,678	$ 4,378	$ (2,586)
Beginning balance (in shares) at Dec. 31, 2016		1,593
Increase (Decrease) in Stockholders' Equity
Net earnings	5,309	$ 0	0	0	5,309	0
Other comprehensive income, net of tax	(141)	0	0	0	0	(141)
Dividends declared	(4,221)	0	0	0	(4,221)	0
Purchases of treasury stock	(1,125)	$ 0	(1,125)	0	0	0
Purchases of treasury stock (in shares)		(15)
Stock-based compensation plans and other	639	$ 0	54	592	(7)	0
Stock-based compensation plans and other (in shares)		14
Ending balance at Dec. 31, 2017	5,097	$ 18	(11,923)	14,270	5,459	(2,727)
Ending balance (in shares) at Dec. 31, 2017		1,592
Increase (Decrease) in Stockholders' Equity
Net earnings	5,687	$ 0	0	0	5,687	0
Other comprehensive income, net of tax	247	0	0	0	0	247
Dividends declared	(6,045)	0	0	0	(6,045)	0
Purchases of treasury stock	(12,215)	$ 0	(12,215)	0	0	0
Purchases of treasury stock (in shares)		(121)
Stock-based compensation plans and other	516	$ 0	30	486	0	0
Stock-based compensation plans and other (in shares)		8
Ending balance at Dec. 31, 2018	(8,446)	$ 18	(24,108)	14,756	3,368	(2,480)
Ending balance (in shares) at Dec. 31, 2018		1,479
Increase (Decrease) in Stockholders' Equity
Net earnings	7,882	$ 0	0	0	7,882	0
Other comprehensive income, net of tax	(1,116)	0	0	0	0	(1,116)
Dividends declared	(6,533)	0	0	0	(6,533)	0
Purchases of treasury stock	(428)	$ 0	(428)	0	0	0
Purchases of treasury stock (in shares)		(5)
Stock-based compensation plans and other	469	$ 0	32	437	0	0
Stock-based compensation plans and other (in shares)		5
Ending balance at Dec. 31, 2019	$ (8,172)	$ 18	$ (24,504)	$ 15,193	$ 4,717	$ (3,596)
Ending balance (in shares) at Dec. 31, 2019		1,479