Quarterly Results (unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]



($ in millions)	First Quarter				Second Quarter				Third Quarter					Fourth Quarter
	2014		2013		2014		2013		2014		2013			2014		2013
Revenues	$	1,049	$	1,049	$	851	$	1,087	$	823	$	1,016		$	937	$	1,076
Net income (loss)	127		109		132		150		84		(394		)	183		97

- Definition

The entire disclosure for the quarterly financial data in the annual financial statements. The disclosure may include a tabular presentation of financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income or loss before extraordinary items and earnings per share data. It also includes an indication if the information in the note is unaudited, comments on the aggregate effect of year-end adjustments, and an explanation of matters or transactions that affect comparability or are pertinent to an understanding of the information furnished.

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