Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Measurements (Tables) [Abstract]

Summary of financial instruments recognized at fair value and fair value measurement used

A summary of financial instruments recognized at fair value, and the fair value measurements used, follows:

	Total			Quoted prices in active markets for identical assets (Level 1)		Other observable inputs (Level 2)			Unobservable inputs (Level 3)
2013
Cash	$	915		$	915	$	—		$	—
Short-term investments	794			794		—			—
Net derivative contracts	(35		)	—		(35		)	—
Long-term debt converted to floating interest rates by    interest rate swaps - net	(39		)	—		(39		)	—
2012
Cash	$	577		$	577	$	—		$	—
Short-term investments	527			527		—			—
Net derivative contracts	83			—		83			—
Long-term debt converted to floating interest rates by    interest rate swaps - net	87			—		87			—

Summary of carrying value of short-term investments

A summary of the carrying value of short-term investments follows:

	2013		2012
Time deposits, certificate of deposits and demand deposits with banks	$	279	$	293
Money market investments	512		228
Other	3		6
Total short-term investments	$	794	$	527