Other Income and Expense (Tables)

12 Months Ended

Dec. 31, 2014

Other Income and Expenses [Abstract]

Components of Other Income

The components are summarized below:

	Years Ended December 31,
	2014			2013		2012
	(in millions)
Gain on sale of assets	$	68	(1)	$	12	$	21
Contingency reversal	18		(2)	10		—
Contract termination - Beaver Valley	—			60		—
Insurance proceeds	—			—		38
Gain on extinguishment of tax and other liabilities	—			9		—
Other	38			34		39
Total other income	$	124		$	125	$	98

Components of Other Expense

The components are summarized below:

	Years Ended December 31,
	2014		2013		2012
	(in millions)
Loss on sale and disposal of assets	$	47	$	51	$	64
Legal settlement	11		9		9
Contract termination	—		7		—
Other	10		9		9
Total other expense	$	68	$	76	$	82