Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011
Derivatives, Fair Value [Line Items]
Unrealized gains associated with interest rate swaps that hedge the interest rate risk for a portion of our debt and reported as an addition to debt	$ 22
Beginning of Year Balance	34	45
Changes in fair value recognized into Other Comprehensive Income (OCI)	(7)	(3)
Changes in fair value recognized into income	16	18
Cash receipts	(24)	(26)
Ending Balance	19	34
Interest Rate Swaps
Derivatives, Fair Value [Line Items]
Notional amount of interest rate derivative instruments outstanding	300
Interest Rate Swaps | Prepaid Expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	10
Interest Rate Swaps | Other assets
Derivatives, Fair Value [Line Items]
Derivative assets	24	22
Interest Rate Swaps | Short-term borrowings
Derivatives, Fair Value [Line Items]
Unrealized gains associated with interest rate swaps that hedge the interest rate risk for a portion of our debt and reported as an addition to debt		5
Interest Rate Swaps | Long-term debt
Derivatives, Fair Value [Line Items]
Unrealized gains associated with interest rate swaps that hedge the interest rate risk for a portion of our debt and reported as an addition to debt	22	21
Foreign Currency Forwards
Derivatives, Fair Value [Line Items]
Notional amount of foreign currency derivative instruments outstanding	525
Foreign Currency Forwards | Prepaid Expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	0	3
Foreign Currency Forwards | Accounts payable and other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	$ (5)	$ (1)