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Derivative Instruments and Fair Value Measurements - Assets recorded at fair value on a nonrecurring basis (Details) - USD ($)
$ in Millions
Apr. 02, 2016
Jan. 02, 2016
Fair Value Measurements, Nonrecurring | Finance group | Unobservable Inputs (Level 3)    
Assets measured at fair value on a nonrecurring basis    
Impaired finance receivables, Balance $ 39 $ 45