Debt (Long-Term Debt Footnote A) (Details) (USD $) In Millions, unless otherwise specified			1 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Mar. 31, 2001 7.45% U.S. Dollar Debentures Due 2031 [Member]	Nov. 30, 2009 6.6% U.S. Dollar Notes Due 2011 [Member]
Debt Instrument [Line Items]
Debt instrument, face amount			$ 1,100
Debt Instrument term, in years			30 years
Debt instrument, stated interest rate			7.45%
Effective interest rate			7.54%	6.60%
Notional amounts of interest rate swaps	$ 3,278	$ 3,040