Segment Financial Data (By Geographic Region) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
External Net Sales by Geography	59837	57244	56098
United States Export Sales	$ 11,124	$ 10,827	$ 9,741
Operating profit by Geography	$ 8,672	$ 8,172	$ 7,291
Long-Lived Assets by Geography	10186	9158	8732
United States Operations
External Net Sales by Geography	33912	32335	30989
Operating profit by Geography	$ 4,528	$ 4,566	$ 4,391
Long-Lived Assets by Geography	5323	4822	4517
Europe [Member]
External Net Sales by Geography	11879	11151	10945
United States Export Sales	$ 5,273	$ 5,065	$ 4,366
Operating profit by Geography	$ 2,058	$ 1,933	$ 1,882
Long-Lived Assets by Geography	1817	1538	1525
Asia Pacific [Member]
External Net Sales by Geography	8770	8260	8425
United States Export Sales	$ 3,634	$ 3,449	$ 2,902
Operating profit by Geography	$ 1,488	$ 1,484	$ 1,641
Long-Lived Assets by Geography	1113	999	994
Other
External Net Sales by Geography	5262	5479	5584
United States Export Sales	$ 2,217	$ 2,313	$ 2,473
Operating profit by Geography	$ 1,077	$ 963	$ 109
Long-Lived Assets by Geography	1389	1325	1273
Eliminations and other
External Net Sales by Geography	14	19	155
Operating profit by Geography	$ (479)	$ (774)	$ (732)
Long-Lived Assets by Geography	544	474	423

Disclosure about revenues from external customers (1) attributed to the entity's country of domicile and (2) attributed to all foreign countries in total from which the entity derives revenues.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

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