Investments in Affiliates (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2014

Dec. 31, 2013

Investments Debt And Equity Securities [Abstract]

Schedule of Investments in Affiliates

Investments in affiliates were as follows:

	June 30, 2014		December 31, 2013
	(in millions)
Equity investments	$	240	$	245
Other investments		17		15
	$	257	$	260

Investments in affiliates were as follows:

	December 31,
	2013		2012
	(in millions)
Equity investments	$	245	$	276
Other investments		15		15
	$	260	$	291