Risk Management (Narrative) (Details) (USD $)	Jun. 28, 2014 position	Dec. 31, 2013 position
Derivative [Line Items]
Notional amount of foreign currency derivatives	$ 867,000,000	$ 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
Exposure to aggregate net credit risk	(867,000,000)	(837,000,000)
Not Designated As Hedging Instruments [Member]
Derivative [Line Items]
Fair value of derivative liabilities	6,000,000	4,000,000
Not Designated As Hedging Instruments [Member] | Interest Rate Contracts [Member] | Other Liabilities [Member]
Derivative [Line Items]
Fair value of derivative liabilities	3,000,000	3,000,000
Credit Concentration Risk [Member]
Derivative [Line Items]
Notional amount of foreign currency derivatives	0
Exposure to aggregate net credit risk	$ 0