Fair Value Of Assets And Liabilities (Detail) - USD ($) $ in Millions		Jul. 05, 2015		Dec. 31, 2014
Financial assets (liabilities)
Long-term debt, including current portion		$ (3,413)		$ (3,911)
Fair Value, Inputs, Level 1
Financial assets (liabilities)
Available-for-sale Securities		109	[1]	123	[2]
Derivatives		0	[1]	0	[2]
Long-term debt, including current portion		0	[1]	0	[2]
Held-to-maturity Securities, Fair Value	[2]			10
Fair Value, Inputs, Level 2
Financial assets (liabilities)
Available-for-sale Securities	[3]	70	[1]	65	[2]
Derivatives	[3]	(638)	[1]	(276)	[2]
Long-term debt, including current portion	[3]	(3,357)	[1]	(3,911)	[2]
Held-to-maturity Securities, Fair Value	[2],[3]			490
Carrying (Reported) Amount, Fair Value Disclosure
Financial assets (liabilities)
Available-for-sale Securities		179	[1]	188	[2]
Derivatives		(638)	[1]	(276)	[2]
Long-term debt, including current portion		(3,413)	[1]	(3,911)	[2]
Held-to-maturity Securities, Fair Value	[2]			500
Estimate of Fair Value, Fair Value Disclosure
Financial assets (liabilities)
Available-for-sale Securities		179	[1]	188	[2]
Derivatives		(638)	[1]	(276)	[2]
Long-term debt, including current portion		$ (3,357)	[1]	(3,911)	[2]
Held-to-maturity Securities, Fair Value	[2]			$ 500

[1] We had no Level 3 financial instruments on July 5, 2015, or December 31, 2014.

[2] Included in other current assets on the December 31, 2014, Consolidated Balance Sheet.

[3] 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.