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Derivative Instruments and Fair Value Measurements - Assets and liabilities not recorded at fair value (Details) - USD ($) $ in Millions | Sep. 30, 2017 | Dec. 31, 2016
--- | --- | ---
Manufacturing group | Carrying Value |  |
Financial instruments not reflected at fair value |  |
Debt, excluding leases | $ (3,358) | $ (2,690)
Manufacturing group | Estimated Fair Value |  |
Financial instruments not reflected at fair value |  |
Debt, excluding leases | (3,504) | (2,809)
Finance group |  |
Financial instruments not reflected at fair value |  |
Debt | (841) | (903)
Finance group | Carrying Value |  |
Financial instruments not reflected at fair value |  |
Finance receivables, excluding leases | 617 | 729
Debt | (841) | (903)
Finance group | Estimated Fair Value |  |
Financial instruments not reflected at fair value |  |
Finance receivables, excluding leases | 656 | 758
Debt | $ (810) | $ (831)

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