Income Taxes (Deferred Income Tax Assets and Liabilities) (Details) (USD $) In Millions, unless otherwise specified	Dec. 30, 2011	Dec. 31, 2010
Components of Deferred Tax Assets [Abstract]
Pension Plans	$ 300	$ 243
Other Employee Benefit Plans	309	311
Other	354	353
Total	963	907
Components of Deferred Tax Liabilities [Abstract]
Accelerated Depreciation	8,148	7,557
Other	234	211
Total	8,382	7,768
Net Deferred Income Tax Liabilites	$ 7,419	$ 6,861