Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Net deferred tax assets (liabilities) [Abstract]
Operating loss and tax credit carryforwards	$ 495	$ 592
Employee benefits	251	260
Share-based compensation	108	106
Self-insured casualty claims	50	47
Lease related liabilities	115	134
Various liabilities	82	75
Deferred Tax Assets, Property, Plant and Equipment	39	55
Deferred income and other	57	35
Gross deferred tax assets	1,197	1,304
Deferred tax asset valuation allowances	(358)	(368)
Net deferred tax assets	839	936
Intangible assets, including goodwill	(256)	(167)
Property, plant and equipment	(95)	(121)
Other	(48)	(48)
Gross deferred tax liabilities	(399)	(336)
Net deferred tax assets (liabilities)	440	600
Reported in Consolidated Balance Sheets as:
Deferred income taxes - current	111	112
Deferred income taxes - long-term	481	549
Accounts payable and other current liabilities	(5)	(16)
Other liabilities and deferred credits	(147)	(45)
Net deferred tax assets (liabilities)	440	600
Undistributed foreign earnings [Member]
Deferred tax liability not recognized [Line Items]
Cumulative amount of the temporary difference	$ 2,600