Debt Short-term Financing (Details) (USD $)	6 Months Ended
	Jun. 28, 2014
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,500,000,000
Line of Credit Facility, Expiration Date	Jul. 31, 2018
Debt, Covenant, Maximum Consolidated Total Leverage Ratio of Debt to EBITDA until August 2014	5.5
Debt, Covenant, Maximum Consolidated Total Leverage Ratio Of Debt To EBITDA by August 2015	3.5
Debt, Covenant, Minimum Consolidated Interest Coverage Ratio	3
Letters of Credit Outstanding, Amount	58,000,000
Line of Credit Facility, Amount Outstanding	$ 0
U.S. Commercial Paper Program [Member]
Short-term Financing [Line Items]
Short-term Borrowings, Weighted Average Interest Rate	0.55%
Maximum Period to Maturity Allowed Under Program	397 days
Short-term Debt, Period to Maturity	37 days