Income Taxes (Income before income taxes and the provision for U.S. federal, state, and foreign taxes on earnings) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Income Taxes [Abstract]
Income before income taxes, United States	$ 1,267	$ 1,271	$ 1,207
Income before income taxes, Foreign	465	471	477
Income before income taxes	1,732	1,742	1,684
Income taxes, currently payable, Federal	285	97	331
Income taxes, currently payable, State	26	10	39
Income taxes, currently payable, Foreign	108	129	146
Income taxes, currently payable	419	236	516
Income taxes, deferred, Federal	56	239	(8)
Income taxes, deferred, State	13	26	(3)
Income taxes, deferred, Foreign	15	1	(29)
Income taxes, deferred	84	266	(40)
Total income taxes	$ 503	$ 502	$ 476