Segment Financial Data (Geographic External Sales by Origin and Long-Lived Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net sales	$ 64,388	$ 56,587	$ 45,349
Long-Lived Assets	14,972	14,962
UNITED STATES
Net sales	40,011	34,560	21,397
Long-Lived Assets	11,731	11,560
UNITED STATES | Sales by origin
Net sales	55,837	48,560	35,125
Europe [Member]
Net sales	9,598	8,856	11,378
Long-Lived Assets	1,255	1,371
Europe [Member] | Sales by origin
Net sales	3,630	3,696	4,419
Asia Pacific [Member]
Net sales	7,969	7,644	7,935
Long-Lived Assets	854	893
Asia Pacific [Member] | Sales by origin
Net sales	1,748	1,574	1,989
Middle East And North Africa
Net sales	4,379	3,443	1,530
Long-Lived Assets	129	137
Middle East And North Africa | Sales by origin
Net sales	136	103	203
Other Geographic Regions [Member]
Net sales	2,431	2,084	3,109
Long-Lived Assets	1,003	1,001
Other Geographic Regions [Member] | Sales by origin
Net sales	$ 3,037	$ 2,654	$ 3,613