Financing Transactions (Narrative) (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified			3 Months Ended
	Mar. 28, 2014	Dec. 31, 2013	Mar. 28, 2014 Liquid Yield Option Notes (LYONs)	Mar. 28, 2014 Commercial Paper	Mar. 28, 2014 Euro-denominated commercial paper	Mar. 28, 2014 Multi Year Facility [Member]	Mar. 28, 2014 Senior notes 2014 Notes	Dec. 31, 2013 Senior notes 2014 Notes
Debt Instrument [Line Items]
Shares issued under debt conversion (shares)			0.1
Common stock, par value (dollars per share)	$ 0.01	$ 0.01
Deferred tax liability, basis difference in LYONs			$ 1,000,000
Weighted average interest rate of short-term debt (interest rate)				0.10%
Weighted average maturity of commercial paper				13 days
Commercial paper	450,000,000	450,000,000			0
Senior notes							400,000,000	400,000,000
Interest rate of debt instrument							1.30%
Line of credit						2,500,000,000
Borrowings outstanding under credit facility						$ 0