Other Charges (Tables)

6 Months Ended

Jun. 30, 2015

Restructuring and Related Activities [Abstract]

Restructuring and Related Costs

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
Restructuring costs	$	—	$	1	$	—	$	2
Costs related to mergers and acquisitions	4		—		7		—
Total other charges	$	4	$	1	$	7	$	2