Quarterly Financial Information (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The following table presents selected unaudited financial information for the eight quarters in the period ended December 31, 2016. The results for any quarter are not necessarily indicative of future quarterly results and, accordingly, period to period comparisons should not be relied upon as an indication of future performance.

	Three Months Ended
	March 31 (3)		June 30 (3)		September 30		December 31
	(in millions, except per share data)
Year ended December 31, 2016
Revenue	$	352	$	391	$	421	$	316
Operating income		42		47		66		10
Net income		29		34		55		1
Basic earnings per share (1)	$	0.20	$	0.23	$	0.38	$	0.01
Diluted earnings per share (1)	$	0.20	$	0.23	$	0.37	$	0.01
Year ended December 31, 2015
Revenue	$	363	$	405	$	415	$	309
Operating income (loss) (2)		90		79		88		(25	)
Net income		63		58		74		3
Basic earnings per share (1)	$	0.44	$	0.40	$	0.51	$	0.02
Diluted earnings per share (1)	$	0.43	$	0.40	$	0.51	$	0.02

(1)	Earnings per share is computed independently for each of the quarters presented. Therefore, the sum of the quarterly earnings per share may not equal the total computed for the year.
(2)	During the fourth quarter of 2015, we recognized an incremental $59 million charge over the third quarter of 2015, related to a non-cash charitable contribution recorded to general and administrative expense on our consolidated statement of operations. Refer to “Note 17 – Segments and Geographic Information” for a discussion of this charitable contribution.
(3)	In the third quarter of 2016, the Company early adopted ASU 2016-09, Compensation – Stock Compensation (Topic 718):  Improvements to Employee Share-Based Payment Accounting.  Refer to “Note 2 – Significant Accounting Policies” for the impact of the adoption of this guidance on the first and second quarters of 2016.