We have derivative instruments with credit-risk-related contingent features.
For foreign exchange contracts with original maturities of at least five years, our derivative counterparties could require settlement if we default on our five-year credit facility.
For commodity contracts, our counterparties could require collateral posted in an amount determined by our credit ratings.
The fair value of foreign exchange and commodity contracts that have credit-risk-related contingent features that are in a net liability position at December 31, 2013 was $7.
At December 31, 2013, there was no collateral posted related to our derivatives.
Note 18 – Significant Group Concentrations of Risk Credit Risk Financial instruments involving potential credit risk are predominantly with commercial aircraft customers and the U. S.  government.
Of the $10,670 in gross accounts receivable and gross customer financing included in the Consolidated Statements of Financial Position as of December 31, 2013, $4,870 related predominantly to commercial aircraft customers ($924 of accounts receivable and $3,946 of customer financing) and $3,604 related to the U. S.  government.
Of the $4,020 in gross customer financing, $2,720 related to customers we believe have less than investment-grade credit including American Airlines, United/Continental Airlines, and Hawaiian Airlines who were associated with 11%, 9% and 8%, respectively, of our financing portfolio.
Financing for aircraft is collateralized by security in the related asset and in some instances security in other assets as well.
Other Risk As of December 31, 2013, approximately 38% of our total workforce was represented by collective bargaining agreements and approximately 1% of our total workforce was represented by agreements expiring in 2014.
Note 19 – Fair Value Measurements The following table presents our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy.
The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value.
Level 1 refers to fair values determined based on quoted prices in active markets for identical assets.
Level 2 refers to fair values estimated using significant other observable inputs and Level 3 includes fair values estimated using significant unobservable inputs.
## Table 0 ##
Money market funds and available-for-sale equity securities are valued using a market approach based on the quoted market prices of identical instruments.
Available-for-sale debt investments are primarily valued using an income approach based on benchmark yields, reported trades and broker/dealer quotes.
on consolidated debt as a percentage of total capital (as defined).
When considering debt covenants, we continue to have substantial borrowing capacity.
Contractual Obligations The following table summarizes our known obligations to make future payments pursuant to certain contracts as of December 31, 2014, and the estimated timing thereof.
## Table 1 ##
(1) Includes interest on variable rate debt calculated based on interest rates at December 31, 2014.
Variable rate debt was 3% of our total debt at December 31, 2014.
Pension and Other Postretirement Benefits Pension cash requirements are based on an estimate of our minimum funding requirements, pursuant to ERISA regulations, although we may make additional discretionary contributions.
Estimates of other postretirement benefits are based on both our estimated future benefit payments and the estimated contributions to plans that are funded through trusts.
Purchase Obligations Purchase obligations represent contractual agreements to purchase goods or services that are legally binding; specify a fixed, minimum or range of quantities; specify a fixed, minimum, variable, or indexed price provision; and specify approximate timing of the transaction.
Purchase obligations include amounts recorded as well as amounts that are not recorded on the Consolidated Statements of Financial Position.
Approximately 4% of the purchase obligations disclosed above are reimbursable to us pursuant to cost-type government contracts.
Purchase Obligations Not Recorded on the Consolidated Statements of Financial Position Production related purchase obligations not recorded on the Consolidated Statements of Financial Position include agreements for inventory procurement, tooling costs, electricity and natural gas contracts, property, plant and equipment, and other miscellaneous production related obligations.
The most significant obligation relates to inventory procurement contracts.
We have entered into certain significant inventory procurement contracts that specify determinable prices and quantities, and long-term delivery timeframes.
In addition, we purchase raw materials on behalf of our suppliers.
These agreements require suppliers and vendors to be prepared to build and deliver items in sufficient time to meet our production schedules.
The need for such arrangements with suppliers and vendors arises from the extended production planning horizon for many of our products.
A significant portion of these inventory commitments is supported by firm contracts and/or has historically resulted in settlement through reimbursement from customers for penalty payments to the supplier should the customer not take delivery.
These amounts are also included in our forecasts of costs for program and contract accounting.
Some inventory procurement contracts may include escalation adjustments.
In these limited cases, we have included our best estimate of the effect of the escalation adjustment in the amounts disclosed in the table above.
The estimated amount that will be amortized from Accumulated other comprehensive loss into net periodic benefit cost during the year ending December 31, 2018 is as follows:
## Table 2 ##
The accumulated benefit obligation (ABO) for all pension plans was $77,414 and $74,240 at December 31, 2017 and 2016.
Key information for our plans with ABO in excess of plan assets as of December 31 was as follows:
## Table 3 ##
Assumptions The following assumptions, which are the weighted average for all plans, are used to calculate the benefit obligation at December 31 of each year and the net periodic benefit cost for the subsequent year.
## Table 4 ##
The discount rate for each plan is determined based on the plans’ expected future benefit payments using a yield curve developed from high quality bonds that are rated as Aa or better by at least half of the four rating agencies utilized as of the measurement date.
The yield curve is fitted to yields developed from bonds at various maturity points.
Bonds with the ten percent highest and the ten percent lowest yields are omitted.
A portfolio of about 400 bonds is used to construct the yield curve.
Since corporate bond yields are generally not available at maturities beyond 30 years, it is assumed that spot rates will remain level beyond that 30-year point.
The present value of each plan’s benefits is calculated by applying the discount rates to projected benefit cash flows.
All bonds are U. S.  issues, with a minimum outstanding of $50.
The pension fund’s expected return on plan assets assumption is derived from a review of actual historical returns achieved by the pension trust and anticipated future long-term performance of individual asset classes.
While consideration is given to recent trust performance and historical returns, the assumption represents a long-term, prospective return.
The expected return on plan assets component of the net periodic benefit cost for the upcoming plan year is determined based on the expected return on plan assets assumption and the market-related value of plan assets (MRVA).
Since our adoption of the accounting standard for pensions in 1987, we have determined the MRVA based on a five-year moving average of plan assets.
As of December 31, 2017, the MRVA was approximately $2,260 less than the fair market value of assets.
and machine tooling to enhance manufacturing operations, and ongoing replacements of manufacturing and distribution equipment.
Capital spending in all three years also included spending for the replacement and enhancement of the company’s global enterprise resource planning (ERP) management information systems, as well as spending to enhance the company’s corporate headquarters and research and development facilities in Kenosha, Wisconsin.
Snap-on believes that its cash generated from operations, as well as its available cash on hand and funds available from its credit facilities will be sufficient to fund the company’s capital expenditure requirements in 2013.
In 2010, Snap-on acquired the remaining 40% interest in Snap-on Asia Manufacturing (Zhejiang) Co. , Ltd. , the company’s tool manufacturing operation in Xiaoshan, China, for a purchase price of $7.7 million and $0.1 million of transaction costs; Snap-on acquired the initial 60% interest in 2008.
See Note 2 to the Consolidated Financial Statements for additional information.
Financing Activities Net cash used by financing activities was $127.0 million in 2012.
Net cash used by financing activities of $293.7 million in 2011 included the August 2011 repayment of $200 million of unsecured 6.25% notes upon maturity with available cash.
In December 2010, Snap-on sold $250 million of unsecured 4.25% long-term notes at a discount; Snap-on is using, and has used, the $247.7 million of proceeds from the sale of these notes, net of $1.6 million of transaction costs, for general corporate purposes, which included working capital, capital expenditures, repayment of all or a portion of the company’s $200 million, 6.25% unsecured notes that matured in August 2011, and the financing of finance and contract receivables, primarily related to SOC.
In January 2010, Snap-on repaid $150 million of unsecured floating rate debt upon maturity with available cash.
Proceeds from stock purchase and option plan exercises totaled $46.8 million in 2012, $25.7 million in 2011 and $23.7 million in 2010.
Snap-on has undertaken stock repurchases from time to time to offset dilution created by shares issued for employee and franchisee stock purchase plans, stock options and other corporate purposes.
In 2012, Snap-on repurchased 1,180,000 shares of its common stock for $78.1 million under its previously announced share repurchase programs.
As of 2012 year end, Snap-on had remaining availability to repurchase up to an additional $180.9 million in common stock pursuant to its Board of Directors’ (the “Board”) authorizations.
The purchase of Snap-on common stock is at the company’s discretion, subject to prevailing financial and market conditions.
Snap-on repurchased 628,000 shares of its common stock for $37.4 million in 2011; Snap-on repurchased 152,000 shares of its common stock for $8.7 million in 2010.
Snap-on believes that its cash generated from operations, available cash on hand, and funds available from its credit facilities, will be sufficient to fund the company’s share repurchases, if any, in 2013.
Snap-on has paid consecutive quarterly cash dividends, without interruption or reduction, since 1939.
Cash dividends paid in 2012, 2011 and 2010 totaled $81.5 million, $76.7 million and $71.3 million, respectively.
On November 1, 2012, the company announced that its Board increased the quarterly cash dividend by 11.8% to $0.38 per share ($1.52 per share per year).
Quarterly dividends declared in 2012 were $0.38 per share in the fourth quarter and $0.34 per share in the first three quarters ($1.40 per share for the year).
Quarterly dividends in 2011 were $0.34 per share in the fourth quarter and $0.32 per share in the first three quarters ($1.30 per share for the year).
Quarterly dividends in 2010 were $0.32 per share in the fourth quarter and $0.30 per share in the first three quarters ($1.22 per share for the year).

<table><tr><td></td><td colspan="4">December 31, 2013</td><td colspan="4">December 31, 2012</td></tr><tr><td></td><td>Total</td><td>Level 1</td><td>Level 2</td><td>Level 3</td><td>Total</td><td>Level 1</td><td>Level 2</td><td>Level 3</td></tr><tr><td>Assets</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Money market funds</td><td>$3,783</td><td>$3,783</td><td></td><td></td><td>$4,534</td><td>$4,534</td><td></td><td></td></tr><tr><td>Available-for-sale investments</td><td>8</td><td>6</td><td></td><td>$2</td><td>9</td><td>6</td><td></td><td>$3</td></tr><tr><td>Derivatives</td><td>86</td><td></td><td>$86</td><td></td><td>178</td><td></td><td>$178</td><td></td></tr><tr><td>Total assets</td><td>$3,877</td><td>$3,789</td><td>$86</td><td>$2</td><td>$4,721</td><td>$4,540</td><td>$178</td><td>$3</td></tr><tr><td>Liabilities</td><td></td><td></td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Derivatives</td><td>-$79</td><td></td><td>-$79</td><td></td><td>-$84</td><td></td><td>-$84</td><td></td></tr><tr><td>Total liabilities</td><td>-$79</td><td></td><td>-$79</td><td></td><td>-$84</td><td></td><td>-$84</td><td></td></tr></table>
<table><tr><td>(Dollars in millions)</td><td>Total</td><td>Lessthan 1year</td><td>1-3years</td><td>3-5years</td><td>After 5years</td></tr><tr><td>Long-term debt (including current portion)</td><td>$8,950</td><td>$870</td><td>$1,356</td><td>$1,871</td><td>$4,853</td></tr><tr><td>Interest on debt<sup>-1</sup></td><td>5,387</td><td>431</td><td>800</td><td>729</td><td>3,427</td></tr><tr><td>Pension and other postretirement cash requirements</td><td>10,965</td><td>477</td><td>1,080</td><td>1,972</td><td>7,436</td></tr><tr><td>Capital lease obligations</td><td>169</td><td>67</td><td>73</td><td>17</td><td>12</td></tr><tr><td>Operating lease obligations</td><td>1,503</td><td>226</td><td>386</td><td>271</td><td>620</td></tr><tr><td>Purchase obligations not recorded on the Consolidated Statements of Financial Position</td><td>131,549</td><td>47,249</td><td>37,187</td><td>20,505</td><td>26,608</td></tr><tr><td>Purchase obligations recorded on the Consolidated Statements of Financial Position</td><td>16,872</td><td>15,959</td><td>891</td><td>5</td><td>17</td></tr><tr><td>Total contractual obligations</td><td>$175,395</td><td>$65,279</td><td>$41,773</td><td>$25,370</td><td>$42,973</td></tr></table>
<table><tr><td></td><td>Pension</td><td>Other Postretirement Benefits</td></tr><tr><td>Recognized net actuarial loss/(gain)</td><td>$1,128</td><td>-$10</td></tr><tr><td>Amortization of prior service (credits)</td><td>-56</td><td>-126</td></tr><tr><td>Total</td><td>$1,072</td><td>-$136</td></tr></table>
<table><tr><td></td><td>2017</td><td>2016</td></tr><tr><td>Projected benefit obligation</td><td>$74,953</td><td>$76,586</td></tr><tr><td>Accumulated benefit obligation</td><td>71,975</td><td>74,081</td></tr><tr><td>Fair value of plan assets</td><td>$58,353</td><td>$56,530</td></tr></table>
<table><tr><td>December 31,</td><td>2017</td><td>2016</td><td>2015</td></tr><tr><td>Discount rate:</td><td></td><td></td><td></td></tr><tr><td>Pension</td><td>3.60%</td><td>4.00%</td><td>4.20%</td></tr><tr><td>Other postretirement benefits</td><td>3.30%</td><td>3.70%</td><td>3.80%</td></tr><tr><td>Expected return on plan assets</td><td>6.80%</td><td>6.80%</td><td>7.00%</td></tr><tr><td>Rate of compensation increase</td><td>5.30%</td><td>4.40%</td><td>4.00%</td></tr></table>

Question: What's the sum of Interest on debt of After 5years, Fair value of plan assets of 2016, and Total assets of December 31, 2012 Total ?
Answer: 64678