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Equity In Net Assets of Nonconsolidated Affiliates (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018
Schedule of Equity Method Investments [Line Items] |  |  |
Equity income | $ 414 | $ 648 |
Equity Method Investee [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Dividends declared but not paid | 1,600 |  |
Undistributed earnings | 2,700 |  | $ 2,300
Automotive China JVs equity income [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity income | $ 376 | 597 |
Change in ownership percentage | 0.00% |  |
Net sales | $ 10,146 | 13,719 |
Net income | 767 | 1,177 |
Other joint ventures equity income [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity income | $ 38 | $ 51 |

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