Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Income Tax Disclosure [Abstract]
Earnings from continuing operations before income taxes	$ 197	$ 151	$ 540	$ 337
Income tax expense	$ 71	$ 84	$ 175	$ 107
Effective tax rate	36.00%	56.00%	32.00%	32.00%
Federal income tax rate	35.00%		35.00%	35.00%
Foreign Deferred Tax Assets [Member]
Valuation Allowance [Line Items]
Tax expense due to valuation allowance		$ 55