Fair Value Measurements And Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2012

Fair Value Measurements And Financial Instruments [Abstract]

Summary Of Components Of Available-For-Sale Securities

	March 31, 2012		December 31, 2011
Adjusted cost	$	7	$	9
Gross unrealized gains		31		30
Fair value	$	38	$	39

Summary Of Financial Assets Measured At Fair Value On A Recurring Basis

	Balance Sheet Classification	March 31, 2012		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money-market securities	Cash and cash equivalents	$	864	$	864	$	—	$	—
Available-for-sale securities	Other current assets		38		38		—		—
Trading securities	Other assets		225		225		—		—
Interest rate swap	Other assets		19		—		19		—
Total assets		$	1,146	$	1,127	$	19	$	—

	Balance Sheet Classification	December 31, 2011		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money-market securities	Cash and cash equivalents	$	745	$	745	$	—	$	—
Available-for-sale securities	Other current assets		39		39		—		—
Trading securities	Other assets		205		205		—		—
Interest rate swap	Other assets		18		—		18		—
Total assets		$	1,007	$	989	$	18	$	—

Summary Of Financial Assets And Liabilities Measured At Fair Value On A Nonrecurring Basis

	December 31, 2011		Quoted Prices In Active Markets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Description
Long-lived assets	$	29	$	—	$	29	$	—
Total assets	$	29	$	—	$	29	$	—