Risk Management (Narrative) (Details) (USD $)	Sep. 27, 2014 position	Dec. 31, 2013 position
Derivative [Line Items]
Notional amount of foreign currency derivatives	$ 931,000,000	$ 837,000,000
Number of net notional positions to buy or sell foreign currency disclosed (in number of positions)	5	5
Fair value of derivative liabilities		5,000,000
Not Designated As Hedging Instruments
Derivative [Line Items]
Fair value of derivative liabilities	12,000,000	4,000,000
Not Designated As Hedging Instruments | Interest Rate Contracts | Other Liabilities
Derivative [Line Items]
Fair value of derivative liabilities	3,000,000	3,000,000
Credit Concentration Risk
Derivative [Line Items]
Notional amount of foreign currency derivatives	3,000,000
Reported Value Measurement
Derivative [Line Items]
Long-term Debt, Fair Value	$ 3,400,000,000