Derivative Financial Instruments (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended				9 Months Ended		9 Months Ended
	Mar. 30, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013 Three point twenty-five percent Senior Notes Due Two Thousand Twenty-three [Member]	Apr. 02, 2013 Three point twenty-five percent Senior Notes Due Two Thousand Twenty-three [Member]	Sep. 28, 2013 Four point seventy-five percent Senior Notes Due Two Thousand Fourty-three [Member] [Member]	Apr. 02, 2013 Four point seventy-five percent Senior Notes Due Two Thousand Fourty-three [Member] [Member]	Sep. 28, 2013 Two point five percent Senior Notes Due Two Thousand Sixteen [Member]	Jun. 30, 2012 Two point five percent Senior Notes Due Two Thousand Sixteen [Member]
Derivatives, Fair Value [Line Items]
The net amount of gains/(loss) recorded to other income (expense)		$ (4)	$ 13	$ 1
Proceeds from Hedge, Financing Activities	3
Debt Instrument, Face Amount						900		700	500
Debt instrument term, years					10 years		30 years		5 years
Proceeds from termination of interest rate swap										$ 24
Net average interest rate									1.30%