Derivative Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 16, 2012	Jun. 11, 2011	Jun. 16, 2012	Jun. 11, 2011	Jun. 16, 2012 Interest Rate Swaps	Jun. 16, 2012 Interest Rate Swaps Prepaid expenses and other current assets	Dec. 31, 2011 Interest Rate Swaps Prepaid expenses and other current assets	Jun. 16, 2012 Interest Rate Swaps Other assets	Dec. 31, 2011 Interest Rate Swaps Other assets	Dec. 31, 2011 Interest Rate Swaps Short-term borrowings	Jun. 16, 2012 Interest Rate Swaps Long-term debt	Dec. 31, 2011 Interest Rate Swaps Long-term debt	Jun. 16, 2012 Foreign Currency Forwards	Jun. 16, 2012 Foreign Currency Forwards Prepaid expenses and other current assets	Dec. 31, 2011 Foreign Currency Forwards Prepaid expenses and other current assets	Jun. 16, 2012 Foreign Currency Forwards Accounts payable and other current liabilities	Dec. 31, 2011 Foreign Currency Forwards Accounts payable and other current liabilities
Derivatives, Fair Value [Line Items]
Notional amount of interest rate derivative instruments outstanding					$ 550
Notional amount of foreign currency derivative instruments outstanding													546
Derivative assets						5	10	23	22					14	3
Derivative liability																(1)	(1)
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	22	21
Derivative assets (liabilites) beg. balance, net	24	32	34	45
Gains (losses) recognized into OCI	16	(7)	11	(17)
Gains (losses) recognized into income	2	8	4	13
Cash settlements	(1)	(10)	(8)	(18)
Derivative assets (liabilites) ending balance, net	$ 41	$ 23	$ 41	$ 23