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Equity In Net Assets Of Nonconsolidated Affiliates (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015 | Dec. 31, 2015
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity income | $ 497 | $ 502 | $ 1,717 | $ 1,579 |
Equity Method Investee [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Dividends received |  | 315 | 2,000 | 1,700 |
Undistributed earnings | 1,800 |  | 1,800 |  | $ 2,200
Automotive China JVs equity income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity income | 459 | 463 | $ 1,448 | 1,485 |
Change in ownership percentage |  |  | 0.00% |  |
Other joint ventures equity income [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Equity income | $ 38 | $ 39 | $ 269 | $ 94 |

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