Taxes (Reconciliation of Federal Statutory Tax Rate to Effective Tax Rate) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Oct. 01, 2010	Sep. 30, 2011		Oct. 01, 2010
Income Tax Disclosure [Abstract]
U.S. federal statutory expense			$ 276		$ 218
Non-U.S. tax rate differential			(134)		(101)
U.S. taxation of non-U.S. earnings, net of tax credits			39		0
Nondeductible items			23		5
Rate and law change benefit, net(A) (B)			(53)	[1],[2]	(25)	[1],[2]
Other, net			0		(2)
Total provision for income taxes	$ 22	$ 16	$ 151		$ 95

[1] During the third quarter of 2010, the United Kingdom enacted a corporate income tax rate reduction of 1 percentage point effective April 1, 2011, resulting in our recognition of a deferred tax benefit of $25 million during the third quarter of 2010 to reflect this change in our deferred taxes.

[2] During the third quarter of 2011, the United Kingdom enacted a corporate income tax rate reduction of 2 percentage points, 1 percentage point retroactive to April 1, 2011 and 1 percentage point effective April 1, 2012. As a result, we recognized a deferred tax benefit of $53 million during the third quarter of 2011 to reflect this change in our deferred taxes.