The following table details the fee-paid committed and uncommitted credit lines we had available as of May 28, 2017:
| In Billions| Facility Amount| Borrowed Amount|
|Credit facility expiring:|||
|May 2022|$2.7|$—|
|June 2019|0.2|0.1|
|Total committed credit facilities|2.9|0.1|
|Uncommitted credit facilities|0.5|0.1|
|Total committed and uncommitted credit facilities|$3.4|$0.2|

In fiscal 2016, we entered into a $2.7 billion fee-paid committed credit facility that was originally scheduled to expire in May 2021.
During the fourth quarter of fiscal 2017 we amended the credit facility’s expiration date by one year to May 2022.
To ensure availability of funds, we maintain bank credit lines sufficient to cover our outstanding notes payable.
Commercial paper is a continuing source of short-term financing.
We have commercial paper programs available to us in the United States and Europe.
We also have uncommitted and asset-backed credit lines that support our foreign operations.
The credit facilities contain several covenants, including a requirement to maintain a fixed charge coverage ratio of at least 2.5 times.
Certain of our long-term debt agreements, our credit facilities, and our noncontrolling interests contain restrictive covenants.
As of May 28, 2017, we were in compliance with all of these covenants.
We have $605 million of long-term debt maturing in the next 12 months that is classified as current, including $500 million of 1.4 percent notes due October 2017 and $100 million of 6.39 percent fixed rate medium term notes due for remarketing in February 2018.
We believe that cash flows from operations, together with available short- and long-term debt financing, will be adequate to meet our liquidity and capital needs for at least the next 12 months.
As of May 28, 2017, our total debt, including the impact of derivative instruments designated as hedges, was 67 percent in fixed-rate and 33 percent in floating-rate instruments, compared to 78 percent in fixedrate and 22 percent in floating-rate instruments on May 29, 2016.
Return on average total capital was 12.7 percent in fiscal 2017 compared to 12.9 percent in fiscal 2016.
Improvement in adjusted return on average total capital is one of our key performance measures (see the “NonGAAP Measures” section below for our discussion of this measure, which is not defined by GAAP).
Adjusted return on average total capital increased 30 basis points from 11.3 percent in fiscal 2016 to 11.6 percent in fiscal 2017 as fiscal 2017 adjusted earnings increased.
On a constant-currency basis, adjusted return on average total capital increased 40 basis points.
We also believe that our fixed charge coverage ratio and the ratio of operating cash flow to debt are important measures of our financial strength.
Our fixed charge coverage ratio in fiscal 2017 was 7.26 compared to 7.40 in fiscal 2016.
The measure decreased from fiscal 2016 as earnings before income taxes and after-tax earnings from joint ventures decreased by $132 million in fiscal 2017.
Our operating cash flow to debt ratio decreased 6.8 percentage points to 24.4 percent in fiscal 2017, driven by a decrease in cash provided by operations and an increase in notes payable.
We have a 51 percent controlling interest in Yoplait SAS and a 50 percent interest in Yoplait Marques SNC and Liberté Marques Sàrl.
Sodiaal holds the remaining interests in each of these entities.
We consolidate these entities into our consolidated financial statements.
We record Sodiaal’s 50 percent interest in Yoplait Marques SNC and Liberté Marques Sàrl as noncontrolling interests, and its 49 percent interest in Yoplait SAS as a redeemable interest on our Consolidated Balance Sheets.
These euro- and Canadian dollar-denominated interests are reported in U. S.  dollars on our Consolidated Balance Sheets.
Sodiaal has the ability to put all or a portion of its redeemable interest to us at fair value once per year, up to three times before December 2024.
As of May 28, 2017, the redemption value of the redeemable interest was $911 million which approximates its fair value.
The third-party holder of the General Mills Cereals, LLC (GMC) Class A Interests receives quarterly preferred distributions from available net income based on the application of a floating preferred return rate to the holder’s capital account balance established in the most recent mark-to-market valuation (currently $252 million).
On June 1, 2015, the floating preferred return rate on GMC’s Class A Interests was reset to the sum of three-month LIBOR plus 125 basis points.
The preferred return rate is adjusted every three years through a negotiated agreement with the Class A Interest holder or through a remarketing auction.
We have an option to purchase the Class A Interests for consideration equal to the then current capital account value, plus any unpaid preferred return and the prescribed make-whole amount.
If we purchase these interests, any change in the third-party holder’s capital account from its original value will be charged directly to retained earnings and will increase or decrease the net earnings used to calculate EPS in that period.
OFF-BALANCE SHEET ARRANGEMENTS AND CONTRACTUAL OBLIGATIONS As of May 28, 2017, we have issued guarantees and comfort letters of $505 million for the debt and other obligations of consolidated subsidiaries, and guarantees and comfort letters of $165 million for the debt and other obligations of non-consolidated affiliates, mainly CPW.
In addition, off-balance sheet arrangements are generally limited to the future payments under non-cancelable operating leases, which totaled $501 million as of May 28, 2017.
As of May 28, 2017, we had invested in five variable interest entities (VIEs).
None of our VIEs are material to our results of operations, financial condition, or liquidity as of and for the fiscal year ended May 28, 2017.
Our defined benefit plans in the United States are subject to the requirements of the Pension Protection Act (PPA).
In the future, the PPA may require us to make additional contributions to our domestic plans.
We do not expect to be required to make any contributions in fiscal 2017.
The following table summarizes our future estimated cash payments under existing contractual obligations, including payments due by period:
|| Payments Due by Fiscal Year|
| In Millions|Total|2018|2019 -20|2021 -22|2023 and Thereafter|
|Long-term debt (a)|$8,290.6|604.2|2,647.7|1,559.3|3,479.4|
|Accrued interest|83.8|83.8|—|—|—|
|Operating leases (b)|500.7|118.8|182.4|110.4|89.1|
|Capital leases|1.2|0.4|0.6|0.1|0.1|
|Purchase obligations (c)|3,191.0|2,304.8|606.8|264.3|15.1|
|Total contractual obligations|12,067.3|3,112.0|3,437.5|1,934.1|3,583.7|
|Other long-term obligations (d)|1,372.7|—|—|—|—|
|Total long-term obligations|$13,440.0|$3,112.0|$3,437.5|$1,934.1|$3,583.7|

(a) Amounts represent the expected cash payments of our long-term debt and do not include $1.2 million for capital leases or $44.4 million for net unamortized debt issuance costs, premiums and discounts, and fair value adjustments.
(b) Operating leases represents the minimum rental commitments under non-cancelable operating leases.
(c) The majority of the purchase obligations represent commitments for raw material and packaging to be utilized in the normal course of business and for consumer marketing spending commitments that support our brands.
For purposes of this table, arrangements are considered purchase obligations if a contract specifies all significant terms, including fixed or minimum quantities to be purchased, a pricing structure, and approximate timing of the transaction.
Most arrangements are cancelable without a significant penalty and with short notice (usually 30 days).
Any amounts reflected on the Consolidated Balance Sheets as accounts payable and accrued liabilities are excluded from the table above.
(d) The fair value of our foreign exchange, equity, commodity, and grain derivative contracts with a payable position to the counterparty was $24 million as of May 28, 2017, based on fair market values as of that date.
Future changes in market values will impact the amount of cash ultimately paid or received to settle those instruments in the future.
Other long-term obligations mainly consist of liabilities for accrued compensation and benefits, including the underfunded status of certain of our defined benefit pension, other postretirement benefit, and postemployment benefit plans, and miscellaneous liabilities.
We expect to pay $21 million of benefits from our unfunded postemployment benefit plans and $14.6 million of deferred compensation in fiscal 2018.
We are unable to reliably estimate the amount of these payments beyond fiscal 2018.
As of May 28, 2017, our total liability for uncertain tax positions and accrued interest and penalties was $158.6 million.
SIGNIFICANT ACCOUNTING ESTIMATES For a complete description of our significant accounting policies, see Note 2 to the Consolidated Financial Statements on page 51 of this report.
Our significant accounting estimates are those that have a meaningful impact on the reporting of our financial condition and results of operations.
These estimates include our accounting for promotional expenditures, valuation of long-lived assets, intangible assets, redeemable interest, stock-based compensation, income taxes, and defined benefit pension, other postretirement benefit, and postemployment benefit plans.
Promotional Expenditures Our promotional activities are conducted through our customers and directly or indirectly with end consumers.
These activities include: payments to customers to perform merchandising activities on our behalf, such as advertising or in-store displays; discounts to our list prices to lower retail shelf prices; payments to gain distribution of new products; coupons, contests, and other incentives; and media and advertising expenditures.
The recognition of these costs requires estimation of customer participation and performance levels.
These estimates are based

Question: What is the average value of Operating leases (b) in 2018 ,2019 and 2021? (in million)

Python solution:
def solution():
    # Define variables name and value
    lease_2018 = 118.8
    lease_2019 = 182.4
    lease_2021 = 110.4
    const_3 = 3

    # Do math calculation to get the answer
    total = lease_2018 + lease_2021 + lease_2019
    answer = total / const_3
    
    return answer

Answer: 137.2