Asset Retirement Obligations (AROs).
FCX’s ARO estimates are reflected on a third-party cost basis and comply with FCX’s legal obligation to retire tangible, long-lived assets.
A summary of changes in FCX’s AROs for the years ended December 31 follows:
## Table 0 ##
a.
The fair value of AROs assumed in the acquisitions of PXP and MMR ($741 million and $287 million, respectively) were estimated based on projected cash flows, an estimated long-term annual inflation rate of 2.5 percent, and discount rates based on FCX’s estimated credit-adjusted, risk-free interest rates ranging from 1.3 percent to 6.3 percent.
ARO costs may increase or decrease significantly in the future as a result of changes in regulations, changes in engineering designs and technology, permit modifications or updates, changes in mine plans, changes in drilling plans, settlements, inflation or other factors and as actual reclamation spending occurs.
ARO activities and expenditures for mining operations generally are made over an extended period of time commencing near the end of the mine life; however, certain reclamation activities may be accelerated if legally required or if determined to be economically beneficial.
The methods used or required to plug and abandon non-producing oil and gas wellbores, remove platforms, tanks, production equipment and flow lines, and restore wellsites could change over time.
New Mexico, Arizona, Colorado and other states require financial assurance to be provided for the estimated costs of mine reclamation and closure, including groundwater quality protection programs.
FCX has satisfied financial assurance requirements by using a variety of mechanisms, primarily involving parent company performance guarantees and financial capability demonstrations, but also including trust funds, surety bonds, letters of credit and collateral.
The applicable regulations specify financial strength tests that are designed to confirm a company’s or guarantor’s financial capability to fund estimated reclamation and closure costs.
The amount of financial assurance FCX is required to provide will vary with changes in laws, regulations, reclamation and closure requirements, and cost estimates.
At December 31, 2013, FCX’s financial assurance obligations associated with these closure and reclamation/restoration costs totaled $2.4 billion, of which $1.7 billion was in the form of guarantees issued by FCX and financial capability demonstrations of FCX.
At December 31, 2013, FCX had trust assets totaling $158 million (included in other assets), which are legally restricted to be used to satisfy its financial assurance obligations for its mining properties in New Mexico.
New Mexico Environmental and Reclamation Programs.
FCX’s New Mexico operations are regulated under the New Mexico Water Quality Act and regulations adopted under that act by the Water Quality Control Commission (WQCC).
The New Mexico Environment Department (NMED) has required each of these operations to submit closure plans for NMED’s approval.
The closure plans must include measures to assure meeting groundwater quality standards following the closure of discharging facilities and to abate any groundwater or surface water contamination.
In 2013, the WQCC adopted Supplemental Permitting Requirements for Copper Mining Facilities, which became effective on October 31, 2013.
These rules identify closure requirements for copper mine facilities.
The rules were adopted after an extensive stakeholder process in which FCX participated and were jointly supported by FCX and NMED.
Although the rules are being challenged in the New Mexico courts by certain environmental organizations and the New Mexico Attorney General, their adoption, along with other commitments in a settlement agreement between NMED and FCX, have allowed NMED and FCX’s Tyrone operation to dismiss its appeal of a WQCC Final Order, dated February 4, 2009, regarding closure conditions applicable to the Tyrone mine.
Finalized closure plan requirements, including those resulting from the newly adopted rules, could result in increases in closure costs for FCX’s New Mexico operations.
FCX’s New Mexico operations also are subject to regulation under the 1993 New Mexico Mining Act (the Mining Act) and the related rules that are administered by the Mining and Minerals Division (MMD) of the New Mexico Energy, Minerals and Natural Resources Department.
Under the Mining Act, mines are required to obtain approval of plans describing the reclamation to be performed following cessation of mining operations.
At December 31, 2013, FCX had accrued reclamation and closure costs of $465 million for its New Mexico operations.
As stated above, additional accruals may be required based on the state’s review of FCX’s updated closure plans and any resulting permit conditions, and the amount of those accruals could be material.
Arizona Environmental and Reclamation Programs.
FCX’s Arizona properties are subject to regulatory oversight in several areas.
ADEQ has adopted regulations for its aquifer protection permit (APP) program that require permits for, among other things, certain facilities, activities and structures used for mining, concentrating and smelting and require compliance with aquifer water quality standards at an applicable point of compliance well or location.
The APP program also may require mitigation and discharge reduction or elimination of some discharges.
An application for an APP requires a description of a closure strategy that will meet applicable groundwater protection
Results of Operations for the Years Ended December 31, 2014 compared to December 31, 2013 compared to December 31, 2012 To assist in the comparisons, the discussion that follows will separate the impact of CIP from the overall consolidated results of operations.
The impact is illustrated in the tables immediately below by a column which shows the dollar-value change in the consolidated figures, as caused by the consolidation of CIP.
For example, the impact of CIP on total operating revenues for the year ended December 31, 2014 was a reduction of $35.2 million .
This indicates that the consolidation of CIP reduced consolidated revenues by $35.2 million , reflecting the elimination upon consolidation of the operating revenues earned by Invesco for managing these investment products.
The discussion below includes the use of non-GAAP financial measures.
See “Schedule of Non-GAAP Information” for additional details and reconciliations of the most directly comparable U. S.  GAAP measures to the non-GAAP measures.
Summary of Income Statement Impact of CIP
## Table 1 ##
predetermined intervals, usually every 7, 28, 35, or 90 days.
The funds associated with failed auctions will not be accessible until a successful auction occurs or a buyer is found outside of the auction process.
Based on brokerdealer valuation models and an analysis of other-than-temporary impairment factors, auction rate securities with an original par value of approximately $34 million were written-down to an estimated fair value of $16 million as of December 31, 2007.
This write-down resulted in an “other-than-temporary” impairment charge of approximately $8 million (pre-tax) included in net income and a temporary impairment charge of $10 million (pre-tax) reflected as an unrealized loss within other comprehensive income for 2007.
As of December 31, 2007, these investments in auction rate securities have been in a loss position for less than six months.
These auction rate securities are classified as non-current marketable securities as of December 31, 2007 as indicated in the preceding table.3M reviews impairments associated with the above in accordance with Emerging Issues Task Force (EITF) 03-1 and FSP SFAS 115-1 and 124-1, “The Meaning of Other-Than-Temporary-Impairment and Its Application to Certain Investments,” to determine the classification of the impairment as “temporary” or “other-than-temporary.
” A temporary impairment charge results in an unrealized loss being recorded in the other comprehensive income component of stockholders’ equity.
Such an unrealized loss does not reduce net income for the applicable accounting period because the loss is not viewed as other-than-temporary.
The company believes that a portion of the impairment of its auction rate securities investments is temporary and a portion is other-than-temporary.
The factors evaluated to differentiate between temporary and other-than-temporary include the projected future cash flows, credit ratings actions, and assessment of the credit quality of the underlying collateral.
The balance at December 31, 2007 for marketable securities and short-term investments by contractual maturity are shown below.
Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.
## Table 2 ##
Accounting standards provide for the delayed recognition of differences between actual results and expected or estimated results.
This delayed recognition of actual results allows for a smoothed recognition in earnings of changes in benefit obligations and asset performance.
The differences between actual results and expected or estimated results are recognized in full in other comprehensive income.
Amounts recognized in other comprehensive income are reclassified to earnings in a systematic manner over the average remaining service period of participants for our active plans or the average remaining lifetime of participants for our inactive plans.
For additional information regarding pension and other postretirement benefits see Note 10.
ENVIRONMENTAL COMPLIANCE Our environmental compliance costs are undiscounted and include the cost of ongoing monitoring programs, the cost of remediation efforts and other similar costs.
We accrue costs for environmental assessment and remediation efforts when we determine that a liability is probable and we can reasonably estimate the cost.
At the early stages of a remediation effort, environmental remediation liabilities are not easily quantified due to the uncertainties of various factors.
The range of an estimated remediation liability is defined and redefined as events in the remediation effort occur, but generally liabilities are recognized no later than completion of the remedial feasibility study.
When we can estimate a range of probable loss, we accrue the most likely amount.
In the event that no amount in the range of probable loss is considered most likely, the minimum loss in the range is accrued.
As of December 31, 2015, the spread between the amount accrued and the maximum loss in the range for all sites for which a range can be reasonably estimated was $3,154,000.
Accrual amounts may be based on technical cost estimations or the professional judgment of experienced environmental managers.
Our Safety, Health and Environmental Affairs Management Committee routinely reviews cost estimates and key assumptions in response to new information, such as the kinds and quantities of hazardous substances, available technologies and changes to the parties participating in the remediation efforts.
However, a number of factors, including adverse agency rulings and encountering unanticipated conditions as remediation efforts progress, may cause actual results to differ materially from accrued costs.
For additional information regarding environmental compliance costs see Note 8.
CLAIMS AND LITIGATION INCLUDING SELF-INSURANCE We are involved with claims and litigation, including items covered under our self-insurance program.
We are self-insured for losses related to workers' compensation up to $2,000,000 per occurrence and automotive and general/product liability up to $3,000,000 per occurrence.
We have excess coverage on a per occurrence basis beyond these retention levels.
Under our self-insurance program, we aggregate certain claims and litigation costs that are reasonably predictable based on our historical loss experience and accrue losses, including future legal defense costs, based on actuarial studies.
Certain claims and litigation costs, due to their unique nature, are not included in our actuarial studies.
We use both internal and outside legal counsel to assess the probability of loss, and establish an accrual when the claims and litigation represent a probable loss and the cost can be reasonably estimated.
For matters not included in our actuarial studies, legal defense costs are accrued when incurred.
The following table outlines our self-insurance program at December 31:

Tables referenced above, in order (Table 0 first):
<table><tr><td></td><td>2013</td><td>2012</td><td>2011</td></tr><tr><td>Balance at beginning of year</td><td>$1,146</td><td>$921</td><td>$856</td></tr><tr><td>Liabilities assumed in the acquisitions of PXP and MMR<sup>a</sup></td><td>1,028</td><td>—</td><td>—</td></tr><tr><td>Liabilities incurred</td><td>45</td><td>6</td><td>9</td></tr><tr><td>Settlements and revisions to cash flow estimates, net</td><td>123</td><td>211</td><td>48</td></tr><tr><td>Accretion expense</td><td>95</td><td>55</td><td>58</td></tr><tr><td>Spending</td><td>-107</td><td>-47</td><td>-49</td></tr><tr><td>Other</td><td>-2</td><td>—</td><td>-1</td></tr><tr><td>Balance at end of year</td><td>2,328</td><td>1,146</td><td>921</td></tr><tr><td>Less: current portion</td><td>-115</td><td>-55</td><td>-31</td></tr><tr><td>Long-term portion</td><td>$2,213</td><td>$1,091</td><td>$890</td></tr></table>
<table><tr><td></td><td colspan="2">December 31, 2014</td><td colspan="2">December 31, 2013</td><td colspan="2">December 31, 2012</td></tr><tr><td>$ in millions</td><td>Impact of CIP</td><td>Invesco Ltd. Consolidated</td><td>Impact of CIP</td><td>Invesco Ltd. Consolidated</td><td>Impact of CIP</td><td>Invesco Ltd. Consolidated</td></tr><tr><td>Total operating revenues</td><td>-35.2</td><td>5,147.1</td><td>-37.9</td><td>4,644.6</td><td>-41.0</td><td>4,050.4</td></tr><tr><td>Total operating expenses</td><td>34.6</td><td>3,870.2</td><td>34.9</td><td>3,524.4</td><td>31.5</td><td>3,207.8</td></tr><tr><td>Operating income</td><td>-69.8</td><td>1,276.9</td><td>-72.8</td><td>1,120.2</td><td>-72.5</td><td>842.6</td></tr><tr><td>Equity in earnings of unconsolidated affiliates</td><td>-4.0</td><td>32.8</td><td>-2.5</td><td>35.5</td><td>0.5</td><td>29.7</td></tr><tr><td>Interest and dividend income</td><td>-3.3</td><td>13.1</td><td>-5.5</td><td>10.0</td><td>-12.3</td><td>9.8</td></tr><tr><td>Interest expense</td><td>—</td><td>-73.1</td><td>—</td><td>-44.6</td><td>—</td><td>-52.3</td></tr><tr><td>Other gains and losses, net</td><td>-4.8</td><td>28.1</td><td>-11.8</td><td>2.6</td><td>-8.7</td><td>8.3</td></tr><tr><td>Other income/(expense) of CSIP, net</td><td>—</td><td>24.3</td><td>—</td><td>2.9</td><td>—</td><td>—</td></tr><tr><td>Interest and dividend income of CIP</td><td>206.5</td><td>206.5</td><td>190.0</td><td>190.0</td><td>258.5</td><td>258.5</td></tr><tr><td>Interest expense of CIP</td><td>-133.9</td><td>-133.9</td><td>-123.3</td><td>-123.3</td><td>-168.3</td><td>-168.3</td></tr><tr><td>Other gains/(losses) of CIP, net</td><td>20.4</td><td>20.4</td><td>61.9</td><td>61.9</td><td>-97.7</td><td>-97.7</td></tr><tr><td>Income from continuing operations before taxes</td><td>11.1</td><td>1,395.1</td><td>36.0</td><td>1,255.2</td><td>-100.5</td><td>830.6</td></tr><tr><td>Income tax provision</td><td>—</td><td>-390.6</td><td>—</td><td>-336.9</td><td>—</td><td>-261.4</td></tr><tr><td>Income from continuing operations, net of taxes</td><td>11.1</td><td>1,004.5</td><td>36.0</td><td>918.3</td><td>-100.5</td><td>569.2</td></tr><tr><td>Income from discontinued operations, net of taxes</td><td>—</td><td>-3.4</td><td>—</td><td>64.5</td><td>—</td><td>18.1</td></tr><tr><td>Net income</td><td>11.1</td><td>1,001.1</td><td>36.0</td><td>982.8</td><td>-100.5</td><td>587.3</td></tr><tr><td>(Gains)/losses attributable to noncontrolling interests in consolidated entities, net</td><td>-3.3</td><td>-13.0</td><td>-44.7</td><td>-42.5</td><td>89.8</td><td>89.8</td></tr><tr><td>Net income attributable to common shareholders</td><td>7.8</td><td>988.1</td><td>-8.7</td><td>940.3</td><td>-10.7</td><td>677.1</td></tr></table>
<table><tr><td>(Millions)</td><td>Dec. 31, 2007</td></tr><tr><td>Due in one year or less</td><td>$231</td></tr><tr><td>Due after one year through three years</td><td>545</td></tr><tr><td>Due after three years through five years</td><td>221</td></tr><tr><td>Due after five years</td><td>62</td></tr><tr><td>Total marketable securities</td><td>$1,059</td></tr></table>

Question: What is the average value of Net income attributable to common shareholders at December 31, 2014,December 31, 2013 and December 31, 2012,in terms of Invesco Ltd. Consolidated? (in million)
Answer: 868.5
Reasoning program: add(988.1,940.3), add(#0,677.1), divide(#1,const_3)