Accounts Receivable and Finance Receivables (Details 3) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 28, 2013 item	Dec. 29, 2012
Accounts Receivable and Finance Receivables
Number of loan categories based on key credit quality indicators for individual loan	3
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	$ 1,498	$ 1,934
Performing
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	1,292	1,661
Finance receivables held for investment based on the internally assigned credit quality, percent	86.30%	85.90%
Watchlist
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	101	130
Finance receivables held for investment based on the internally assigned credit quality, percent	6.70%	6.70%
Nonaccrual
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	105	143
Finance receivables held for investment based on the internally assigned credit quality, percent	7.00%	7.40%
Nonaccrual | Minimum
Finance receivables held for investment based on the internally assigned credit quality
Number of months of contractual delinquency to classify accounts as nonaccrual unless such collection is not doubtful	3 months
Captive
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	1,379	1,704
Captive | Performing
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	1,173	1,476
Captive | Watchlist
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	101	130
Captive | Nonaccrual
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	105	98
Non-captive
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	119	230
Non-captive | Performing
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment	119	185
Non-captive | Nonaccrual
Finance receivables held for investment based on the internally assigned credit quality
Total finance receivables held for investment		$ 45