Equity (Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Millions, unless otherwise specified	Jun. 29, 2013	Dec. 29, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	$ (923)	$ (832)
Cash flow hedges - unrealized net gain (loss)	4	(3)
Postretirement and postemployment benefits:
Net experience loss	(26)	(29)
Prior Service Cost	(78)	(82)
Total accumulated other comprehensive income (loss)	$ (1,023)	$ (946)	[1],[2]

[1] Condensed from audited financial statements.

[2] Amounts have been revised as discussed in Note 2 to the financial statements.