Accounts Receivable and Finance Receivables (Details 5) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 30, 2013	Dec. 29, 2012
Summary of impaired finance receivables, excluding leveraged leases
Recorded investment, Impaired Loans with No Related Allowance for Credit Losses	$ 72	$ 72
Recorded investment, Impaired Loans with Related Allowance for Credit Losses	98	99
Recorded investment, Total Impaired Loans	170	171
Unpaid Principal Balance	186	187
Allowance For Losses On Impaired Loans	26	27
Average Recorded Investment	171	270
Captive
Summary of impaired finance receivables, excluding leveraged leases
Recorded investment, Impaired Loans with No Related Allowance for Credit Losses	62	61
Recorded investment, Impaired Loans with Related Allowance for Credit Losses	75	66
Recorded investment, Total Impaired Loans	137	127
Unpaid Principal Balance	144	128
Allowance For Losses On Impaired Loans	18	15
Average Recorded Investment	132	121
Non-captive
Summary of impaired finance receivables, excluding leveraged leases
Recorded investment, Impaired Loans with No Related Allowance for Credit Losses	10	11
Recorded investment, Impaired Loans with Related Allowance for Credit Losses	23	33
Recorded investment, Total Impaired Loans	33	44
Unpaid Principal Balance	42	59
Allowance For Losses On Impaired Loans	8	12
Average Recorded Investment	$ 39	$ 149