Fair Value Of Assets And Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Sep. 28, 2014		Dec. 31, 2013
Financial assets (liabilities)
Long-term debt, including current portion	$ (3,911)		$ (3,909)
Carrying (Reported) Amount, Fair Value Disclosure
Financial assets (liabilities)
Marketable Securities	500	[1]
Other investments	170	[1]	183	[1]
Derivatives	(61)	[1]	10	[1]
Long-term debt, including current portion	(3,911)	[1]	(3,909)	[1]
Estimate of Fair Value, Fair Value Disclosure
Financial assets (liabilities)
Marketable Securities	500	[1]
Other investments	170	[1]	183	[1]
Derivatives	(61)	[1]	10	[1]
Long-term debt, including current portion	(3,879)	[1]	(3,758)	[1]
Fair Value, Inputs, Level 1
Financial assets (liabilities)
Marketable Securities	10	[1]
Other investments	106	[1]	134	[1]
Derivatives	0	[1]	0	[1]
Long-term debt, including current portion	0	[1]	0	[1]
Fair Value, Inputs, Level 2
Financial assets (liabilities)
Marketable Securities	490	[1],[2]
Other investments	64	[1],[2]	49	[1],[2]
Derivatives	(61)	[1],[2]	10	[1],[2]
Long-term debt, including current portion	$ (3,879)	[1],[2]	$ (3,758)	[1],[2]

[1] We had no Level 3 financial instruments on December 31, 2013, or September 28, 2014.

[2] Determined under a market approach using valuation models that incorporate observable inputs such as interest rates, bond yields and quoted prices for similar assets and liabilities.