Fair Value Of Assets And Liabilities (Detail) - USD ($) $ in Millions		Oct. 04, 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		101	[1]	123
Derivatives		0	[1]	0
Long-term debt, including current portion		0	[1]	0
Held-to-maturity marketable securities	[2]			10
Fair Value, Inputs, Level 2
Financial assets (liabilities)
Available-for-sale Securities	[3]	68	[1]	65
Derivatives	[3]	(585)	[1]	(276)
Long-term debt, including current portion	[3]	(3,401)	[1]	(3,911)
Held-to-maturity marketable securities	[2],[3]			490
Fair Value, Inputs, Level 3
Financial assets (liabilities)
Available-for-sale Securities		0		0
Derivatives		0		0
Long-term debt, including current portion		0		0
Held-to-maturity marketable securities				0
Carrying Value
Financial assets (liabilities)
Available-for-sale Securities		169	[1]	188
Derivatives		(585)	[1]	(276)
Long-term debt, including current portion		(3,413)	[1]	(3,911)
Held-to-maturity marketable securities	[2]			500
Fair Value
Financial assets (liabilities)
Available-for-sale Securities		169	[1]	188
Derivatives		(585)	[1]	(276)
Long-term debt, including current portion		$ (3,401)	[1]	(3,911)
Held-to-maturity marketable securities	[2]			$ 500

[1] We had no Level 3 financial instruments on October 4, 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.