Fair Value Of Assets And Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Jun. 29, 2014		Dec. 31, 2013
Financial assets (liabilities)
Long-term debt, including current portion	$ (3,910)		$ (3,909)
Carrying (Reported) Amount, Fair Value Disclosure
Financial assets (liabilities)
Other investments	173	[1]	183	[1]
Derivatives	9	[1]	10	[1]
Long-term debt, including current portion	(3,910)	[1]	(3,909)	[1]
Estimate of Fair Value, Fair Value Disclosure
Financial assets (liabilities)
Other investments	173	[1]	183	[1]
Derivatives	9	[1]	10	[1]
Long-term debt, including current portion	(3,869)	[1]	(3,758)	[1]
Fair Value, Inputs, Level 1
Financial assets (liabilities)
Other investments	108	[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)
Other investments	65	[1],[2]	49	[1],[2]
Derivatives	9	[1],[2]	10	[1],[2]
Long-term debt, including current portion	$ (3,869)	[1],[2]	$ (3,758)	[1],[2]

[1] We had no Level 3 financial instruments on December 31, 2013, or June 29, 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.