Accounts Receivable and Finance Receivables (Details 5) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 29, 2013	Dec. 29, 2012
Summary of impaired finance receivables, excluding leveraged leases
Recorded investment, Impaired Loans with No Related Allowance for Credit Losses	$ 74	$ 72
Recorded investment, Impaired Loans with Related Allowance for Credit Losses	82	99
Recorded investment, Total Impaired Loans	156	171
Unpaid Principal Balance	169	187
Allowance For Losses On Impaired Loans	22	27
Average Recorded Investment	166	270
Captive
Summary of impaired finance receivables, excluding leveraged leases
Recorded investment, Impaired Loans with No Related Allowance for Credit Losses	67	61
Recorded investment, Impaired Loans with Related Allowance for Credit Losses	71	66
Recorded investment, Total Impaired Loans	138	127
Unpaid Principal Balance	144	128
Allowance For Losses On Impaired Loans	18	15
Average Recorded Investment	134	121
Non-captive
Summary of impaired finance receivables, excluding leveraged leases
Recorded investment, Impaired Loans with No Related Allowance for Credit Losses	7	11
Recorded investment, Impaired Loans with Related Allowance for Credit Losses	11	33
Recorded investment, Total Impaired Loans	18	44
Unpaid Principal Balance	25	59
Allowance For Losses On Impaired Loans	4	12
Average Recorded Investment	$ 32	$ 149