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Segment Reporting - Consolidated Revenues by Geographic Area (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017
Revenue from External Customer [Line Items] |  |  |  |
Sales | $ 10,465 | $ 9,930 | $ 20,502 | $ 19,365
United States |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Sales | 4,243 | 4,308 | 8,376 | 8,503
Europe, Middle East and Africa |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Sales | 3,144 | 2,804 | 6,334 | 5,433
Asia Pacific |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Sales | 1,350 | 1,056 | 2,588 | 2,054
Japan |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Sales | 855 | 839 | 1,592 | 1,544
Latin America |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Sales | 594 | 583 | 1,126 | 1,068
Other |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Sales | $ 279 | $ 340 | $ 486 | $ 763

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
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