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Stock Compensation Plans | 3 Months Ended
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Mar. 31, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
STOCK COMPENSATION PLANS | STOCK COMPENSATION PLANS Our Board of Directors granted 0.7 million stock options, 0.1 million restricted stock units and 0.2 million performance share units during the three months ended March 31, 2017 under our stock compensation plans. The weighted average exercise price per share and weighted average fair value per share of the stock option grants during the three months ended March 31, 2017 were $35.26 and $12.08, respectively. We estimated the fair value of the stock options using the following assumptions in our Black-Scholes model: Expected term: 7.2 years Interest rate: 2.13% Volatility: 33.63% Dividend yield: 1.13% We measure the fair value of grants of restricted stock units and performance share units based primarily on the closing market price of a share of our common stock on the date of the grant, modified as appropriate to take into account the features of such grants. The weighted average fair value per share was $35.26 for restricted stock units and $36.78 for performance share units granted during the three months ended March 31, 2017. We recognized stock-based compensation expense of $6 million and $7 million during the three months ended March 31, 2017 and 2016, respectively. At March 31, 2017, unearned compensation cost related to the unvested portion of all stock-based awards was approximately $42 million and is expected to be recognized over the remaining vesting period of the respective grants, through the first quarter of 2022.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=65895303&loc=d3e17540-113929 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68057994&loc=d3e25284-112666 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 + Details
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