Financial Instruments (Details) (Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments not Recorded at Fair Value) (USD $) In Millions, unless otherwise specified	Mar. 29, 2014	Dec. 28, 2013
Financial Instrument [Line Items]
Long-term debt (excluding capital leases), at carrying amount	$ 2,068	$ 1,986
Long-term debt (excluding capital leases), at estimated fair value	2,132	2,132
Reported Value Measurement [Member]
Financial Instrument [Line Items]
Short-term debt	55	55
Estimate of Fair Value Measurement [Member]
Financial Instrument [Line Items]
Short-term debt	$ 55	$ 55