Stock Plans (Tables)

6 Months Ended

Jun. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of weighted average grant date fair value and compensation expense related to share-based awards

During the six months ended June 30,2017 and 2016, shares granted to eligible employees and the weighted-average grant date fair value per share related to RSU awards were as follows:

	Number of Shares Granted	Weighted-Average Grant Date Fair Value Per RSU Award Granted
2017	1,202,970	$	98.48
2016	1,212,050	$	89.02

Compensation expense related to RSU awards were as follows:

	Compensation Expense Related to RSU Awards
(in millions)	For the Six Months Ended June 30,		For the Three Months Ended June 30,
2017	$	60	$	25
2016	$	69	$	28

During the six months ended June 30,2017 and 2016, shares granted to eligible employees and the grant date fair value per share related to PSU awards were as follows:

	Number of Shares Granted	Grant Date Fair Value Subject to TSR Performance Factor Per Share (a)		Grant Date Fair Value Subject to Other Performance Factors Per Share (b)
2017	393,460	$	128.72	$	98.29
2016	428,400	$	104.60	$	89.02

^(a) The grant date fair value of the PSU market based awards subject to the TSR performance factor was determined by using the Monte Carlo simulation model.

^(b) The grant date fair value of the PSU awards subject to the other performance factors was determined by using the average of the high and low market price of PMI’s stock at the date of grant.

Compensation expense related to PSU awards were as follows:

	Compensation Expense Related to PSU Awards
(in millions)	For the Six Months Ended June 30,		For the Three Months Ended June 30,
2017	$	25	$	8
2016	$	20	$	8