Subsequent Events - Summary of Pro Forma Results (Detail) - IMS Health Holdings, Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Subsequent Event [Line Items]
Product and service revenues	$ 1,926,000	$ 1,828,000	$ 5,775,000	$ 5,305,000
Reimbursed expenses	361,000	331,000	1,128,000	1,018,000
Total revenues	2,287,000	2,159,000	6,903,000	6,323,000
Net income attributable to Quintiles IMS Holdings, Inc.	$ 88,000	$ 113,000	$ 255,000	$ 525,000
Earnings per share attributable to common stockholders:
Basic	$ 0.36	$ 0.45	$ 1.04	$ 2.10
Diluted	$ 0.35	$ 0.44	$ 1.02	$ 2.04