Derivative Instruments and Fair Value Measurements - Assets and liabilities not recorded at fair value (Details) - USD ($) $ in Millions	Apr. 01, 2017	Dec. 31, 2016
Manufacturing group | Carrying Value
Financial instruments not reflected at fair value
Debt, excluding leases	$ (3,043)	$ (2,690)
Manufacturing group | Estimated Fair Value
Financial instruments not reflected at fair value
Debt, excluding leases	(3,173)	(2,809)
Finance group
Financial instruments not reflected at fair value
Debt	(885)	(903)
Finance group | Carrying Value
Financial instruments not reflected at fair value
Finance receivables, excluding leases	695	729
Debt	(885)	(903)
Finance group | Estimated Fair Value
Financial instruments not reflected at fair value
Finance receivables, excluding leases	727	758
Debt	$ (823)	$ (831)