Investments (Tables)

6 Months Ended

Jun. 30, 2013

Investments [Abstract]

Schedule of investments in marketable equity securities and other

The components of investments were as follows:

	June 30, 2013		December 31, 2012
	(in millions)
Marketable equity securities	$	41	$	45
Equity method and other investments	792		1,008
	$	833	$	1,053

Investee summarized income statement information

Summarized financial information for Clearwire is as follows:

	Three Months Ended						Six Months Ended
	June 30,						June 30,
	2013			2012			2013			2012
	(in millions)
Revenues	$	317		$	317		$	635		$	640
Operating expenses	(601		)	(628		)	(1,223		)	(1,373		)
Operating loss	$	(284	)	$	(311	)	$	(588	)	$	(733	)
Net loss from continuing operations before non-controlling interests	$	(416	)	$	(431	)	$	(878	)	$	(992	)
Net loss from discontinued operations before non-controlling interests	$	—		$	(7	)	$	—		$	(6	)