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Equity In Net Assets of Nonconsolidated Affiliates (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity income | $ 315 | $ 530 | $ 1,000 | $ 1,815 |
Equity Method Investee [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Dividends declared but not paid | 580 |  | 580 |  |
Dividends received | 303 |  | 1,200 | 2,000 |
Undistributed earnings | 2,100 |  | 2,100 |  | $ 2,300
Automotive China JVs equity income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity income | 282 | 485 | $ 893 | 1,674 |
Change in ownership percentage |  |  | 0.00% |  |
Net sales | 9,695 | 11,461 | $ 28,843 | 37,781 |
Net income | 455 | 999 | 1,721 | 3,370 |
Other joint ventures equity income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity income | $ 33 | $ 45 | $ 107 | $ 141 |

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