Debt (Long-Term Debt Footnote L (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended		1 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011	Feb. 28, 2013 Floating-rate U.S. Dollar Notes Due 2015 [Member]	Dec. 28, 2013 Floating-rate U.S. Dollar Notes Due 2015 [Member]	Mar. 31, 2008 4.25% U.S. Dollar Notes Due 2013 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount				$ 250		$ 750
Debt Instrument term, in years						5 years
Debt instrument, stated interest rate						4.25%
Debt instrument, effective interest rate					0.47%
Repayment of long-term debt	$ 762	$ 750	$ 945			$ 750
Three months Libor Plus				LIBOR plus 0.23%