The components of revenue change in the United States (“Domestic”) and the remainder of the world (“International”) were (in millions):
## Table 0 ##
The components and percentages are calculated as follows: .
The foreign exchange impact is calculated by translating the current period’s local currency revenue using the prior period average exchange rates to derive current period constant currency revenue (in this case $15,230.7 million for the Total column).
The foreign exchange impact is the difference between the current period revenue in U. S.  Dollars and the current period constant currency revenue ($15,273.6 million less $15,230.7 million for the Total column).  . Acquisition revenue is calculated as if the acquisition occurred twelve months prior to the acquisition date by aggregating the comparable prior period revenue of acquisitions through the acquisition date.
As a result, acquisition revenue excludes the positive or negative difference between our current period revenue subsequent to the acquisition date and the comparable prior period revenue and the positive or negative growth after the acquisition is attributed to organic growth.
Disposition revenue is calculated as if the disposition occurred twelve months prior to the disposition date by aggregating the comparable prior period revenue of dispositions through the disposition date.
The acquisition revenue and disposition revenue amounts are netted in the table.  . Organic growth is calculated by subtracting the foreign exchange rate impact, and the acquisition revenue, net of disposition revenue components from total revenue growth.  .
The percentage change is calculated by dividing the individual component amount by the prior period revenue base of that component ($15,416.9 million for the Total column).
In 2017, changes in foreign exchange rates continued to negatively impact revenue but at a more moderate rate as compared to 2016.
The impact of foreign exchange rates in 2017 increased revenue by 0.3%, or $42.9 million.
While a number of currencies weakened against the U. S.  Dollar, including the Australian Dollar, Brazilian Real, Canadian Dollar and Russian Ruble, the most significant impact resulted from the weakening of the British Pound.
Revenue and organic growth for 2017 and the change in revenue from 2016 in our principal regional markets were (in millions):
## Table 1 ##
In Europe, our primary markets are the U. K.  and the Euro Zone.
Revenue for 2017 in the U. K. , which represents 9.1% of total revenue, decreased 0.9%, and revenue in the Euro Zone and the other European countries, which together represent 17.9% of total revenue, increased 9.4%.
plans and paid $8.1 million in benefits for our postemployment arrangements.
We do not expect these payments to increase significantly in 2019.
The liability for uncertain tax positions is subject to uncertainty as to when or if the liability will be paid.
We have assigned the liability to the periods presented based on our judgment as to when these liabilities will be resolved by the appropriate taxing authorities.
See Note 16 to the consolidated financial statements for a description of our lease commitments, which comprise a significant component of our occupancy and other costs.
See Note 22 to the consolidated financial statements for a discussion of the impact of the adoption of FASB Accounting Standards Codification Topic 842, Leases.
Commercial commitments at December 31, 2018 were (in millions):
## Table 2 ##
At December 31, 2018, there were no significant off-balance sheet arrangements.
Item 7A.
Quantitative and Qualitative Disclosures About Market Risk We manage our exposure to foreign currency exchange rate risk and interest rate risk through various strategies, including the use of derivative financial instruments.
We use forward foreign exchange contracts as economic hedges to manage the cash flow volatility arising from foreign currency exchange rate fluctuations.
We use interest rate swaps to manage our interest expense and structure our long-term debt portfolio to achieve a mix of fixed rate and floating rate debt.
We do not use derivatives for trading or speculative purposes.
Using derivatives exposes us to the risk that counterparties to the derivative contracts will fail to meet their contractual obligations.
We manage that risk through careful selection and ongoing evaluation of the counterparty financial institutions based on specific minimum credit standards and other factors.
We evaluate the effects of changes in foreign currency exchange rates, interest rates and other relevant market risks on our derivatives.
We periodically determine the potential loss from market risk on our derivatives by performing a value-at-risk, or VaR, analysis.
VaR is a statistical model that uses historical currency exchange and interest rate data to measure the potential impact on future earnings of our derivative financial instruments assuming normal market conditions.
The VaR model is not intended to represent actual losses but is used as a risk estimation and management tool.
Based on the results of the model, we estimate with 95% confidence a maximum one-day change in the net fair value of our derivative financial instruments at December 31, 2018 was not significant.
Foreign Currency Exchange Risk Our international operations represent approximately 48% of our revenue.
Changes in the value of foreign currencies against the U. S.  Dollar affect our results of operations and financial position.
For the most part, because the revenue and expenses of our foreign operations are denominated in the same local currency, the economic impact on operating margin is minimized.
The effects of foreign currency exchange transactions on our results of operations are discussed in Note 2 to the consolidated financial statements.
While our major international markets include the Euro Zone, the U. K. , Australia, Brazil, Canada, China and Japan, our agencies transact business in more than 50 different currencies.
As an integral part of our global treasury operations, we centralize our cash and use multicurrency pools, and to a lesser extent forward foreign exchange contracts, to manage the foreign currency exchange risk that arises from imbalances between subsidiaries and their respective treasury centers from which they borrow or invest funds.
At December 31, 2018, there were no outstanding forward foreign exchange contracts and at December 31, 2017, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $92.8 million.
In addition, there are circumstances where revenue and expense transactions are not denominated in the same currency.
In these instances, amounts are either promptly settled or hedged with forward foreign exchange contracts.
To manage that risk, we had outstanding forward foreign exchange contracts with an aggregate notional amount of $86.1 million and $136.3 million at December 31, 2018 and 2017, respectively.
The net fair value of the forward foreign contracts at December 31, 2018 and 2017 was a current liability of $0.1 million and a current asset of $0.9 million, respectively.
OMNICOM GROUP INC.  AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Continued) Short-Term Debt Short-term debt at December 31, 2018 and 2017 of $8.1 million and $11.8 million, respectively, consists of bank overdrafts and short-term borrowings primarily of our international subsidiaries.
The weighted average interest rate was 4.2% and 2.6%, respectively.
Due to the short-term nature of this debt, carrying value approximates fair value.
Long-Term Debt Long-term debt at December 31, 2018 and 2017 was (in millions):
## Table 3 ##
Omnicom Group Inc. , or OGI, and its wholly owned finance subsidiary, Omnicom Capital Inc. , or OCI, are co-obligors under all the senior notes.
The senior notes are a joint and several liability of OGI and OCI, and OGI unconditionally guarantees OCI’s obligations with respect to the senior notes.
OCI provides funding for our operations by incurring debt and lending the proceeds to our operating subsidiaries.
OCI’s assets consist of cash and cash equivalents and intercompany loans made to our operating subsidiaries and the related interest receivable.
There are no restrictions on the ability of OGI or OCI to obtain funds from our subsidiaries through dividends, loans or advances.
The senior notes are senior unsecured obligations that rank equal in right of payment with all existing and future unsecured senior indebtedness.
The contractual maturities of our long-term debt at December 31, 2018 are (in millions):
## Table 4 ##
We use fixed-to-floating interest rate swaps to manage our interest cost and structure our long-term debt portfolio to achieve a mix of fixed rate and floating rate debt.
Interest rate swaps hedge the risk of changes in fair value of the underlying senior notes attributable to changes in the benchmark LIBOR interest rate.
The interest rate swaps qualify and are designated as fair value hedges on the underlying senior notes and have the economic effect of converting the underlying fixed rate senior notes to floating rate obligations.
Gains and losses attributed to changes in the fair value of the swaps substantially offset changes in the fair value of the underlying senior notes attributed to changes in the benchmark interest rate.
We have a $750 million interest rate swap on our 3.65% Senior Notes due 2024, or 2024 Notes and a $500 million interest rate swap on our 3.60% Senior Notes due 2026, or 2026 Notes.
Under the swap agreement for the 2024 Notes, we receive fixed interest payments of 3.65% and pay a variable interest equal to three-month LIBOR, plus a spread of 1.72%.
Under the swap agreement for the 2026 Notes, we receive fixed interest payments of 3.60% and pay a variable interest equal to three-month LIBOR, plus a spread of 1.982%.
REPUBLIC SERVICES, INC.  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS—(Continued) The letters of credit use $909.4 million and $950.2 million as of December 31, 2012 and 2011, respectively, of availability under our Credit Facilities.
Surety bonds expire on various dates through 2026.
These financial instruments are issued in the normal course of business and are not debt.
Because we currently have no liability for this financial assurance, it is not reflected in our consolidated balance sheets.
However, we have recorded capping, closure and post-closure obligations and self-insurance reserves as they are incurred.
The underlying financial assurance obligations, in excess of those already reflected in our consolidated balance sheets, would be recorded if it is probable that we would be unable to fulfill our related obligations.
We do not expect this to occur.
Our restricted cash and marketable securities deposits include, among other things, restricted cash and marketable securities held for capital expenditures under certain debt facilities, and restricted cash and marketable securities pledged to regulatory agencies and governmental entities as financial guarantees of our performance related to our final capping, closure and post-closure obligations at our landfills.
The following table summarizes our restricted cash and marketable securities as of December 31:

<table><tr><td></td><td colspan="2">Total</td><td colspan="2">Domestic</td><td colspan="2">International</td></tr><tr><td></td><td>$</td><td>%</td><td>$</td><td>%</td><td>$</td><td>%</td></tr><tr><td>December 31, 2016</td><td>$15,416.9</td><td></td><td>$8,627.8</td><td></td><td>$6,789.1</td><td></td></tr><tr><td>Components of revenue change:</td><td></td><td></td><td></td><td></td><td></td><td></td></tr><tr><td>Foreign exchange impact</td><td>42.9</td><td>0.3%</td><td>—</td><td>—%</td><td>42.9</td><td>0.6%</td></tr><tr><td>Acquisition revenue, net of disposition revenue</td><td>-647.3</td><td>-4.2%</td><td>-474.4</td><td>-5.5%</td><td>-172.9</td><td>-2.5%</td></tr><tr><td>Organic growth</td><td>461.1</td><td>3.0%</td><td>43.5</td><td>0.5%</td><td>417.6</td><td>6.2%</td></tr><tr><td>December 31, 2017</td><td>$15,273.6</td><td>-0.9%</td><td>$8,196.9</td><td>-5.0%</td><td>$7,076.7</td><td>4.2%</td></tr></table>
<table><tr><td></td><td>2017</td><td>2016</td><td>$ Change</td><td>% Organic Growth</td></tr><tr><td>Americas:</td><td></td><td></td><td></td><td></td></tr><tr><td>North America</td><td>$8,686.0</td><td>$9,174.0</td><td>$-488.0</td><td>0.6%</td></tr><tr><td>Latin America</td><td>494.8</td><td>423.6</td><td>71.2</td><td>0.6%</td></tr><tr><td>EMEA:</td><td></td><td></td><td></td><td></td></tr><tr><td>Europe</td><td>4,127.9</td><td>3,904.2</td><td>223.7</td><td>7.0%</td></tr><tr><td>Middle East and Africa</td><td>314.6</td><td>278.9</td><td>35.7</td><td>12.5%</td></tr><tr><td>Asia-Pacific</td><td>1,650.3</td><td>1,636.2</td><td>14.1</td><td>5.8%</td></tr><tr><td></td><td>$15,273.6</td><td>$15,416.9</td><td>$-143.3</td><td>3.0%</td></tr></table>
<table><tr><td></td><td></td><td colspan="4">Commitment Expires</td></tr><tr><td></td><td>TotalCommitment</td><td>2019</td><td>2020 - 2021</td><td>2022 - 2023</td><td>After 2023</td></tr><tr><td>Standby letters of credit</td><td>$4.6</td><td>$1.0</td><td>$—</td><td>$2.5</td><td>$1.1</td></tr><tr><td>Guarantees</td><td>115.3</td><td>87.5</td><td>16.5</td><td>6.7</td><td>4.6</td></tr><tr><td></td><td>$119.9</td><td>$88.5</td><td>$16.5</td><td>$9.2</td><td>$5.7</td></tr></table>
<table><tr><td></td><td>2018</td><td>2017</td></tr><tr><td>6.25% Senior Notes due 2019</td><td>$500.0</td><td>$500.0</td></tr><tr><td>4.45% Senior Notes due 2020</td><td>1,000.0</td><td>1,000.0</td></tr><tr><td>3.625% Senior Notes due 2022</td><td>1,250.0</td><td>1,250.0</td></tr><tr><td>3.65% Senior Notes due 2024</td><td>750.0</td><td>750.0</td></tr><tr><td>3.60% Senior Notes due 2026</td><td>1,400.0</td><td>1,400.0</td></tr><tr><td></td><td>4,900.0</td><td>4,900.0</td></tr><tr><td>Unamortized premium (discount), net</td><td>4.9</td><td>6.2</td></tr><tr><td>Unamortized debt issuance costs</td><td>-16.4</td><td>-20.3</td></tr><tr><td>Unamortized deferred gain from settlement of interest rate swaps</td><td>48.0</td><td>66.4</td></tr><tr><td>Fair value adjustment attributed to outstanding interest rate swaps</td><td>-52.8</td><td>-39.4</td></tr><tr><td></td><td>4,883.7</td><td>4,912.9</td></tr><tr><td>Current portion</td><td>-499.6</td><td>—</td></tr><tr><td>Long-term debt</td><td>$4,384.1</td><td>$4,912.9</td></tr></table>
<table><tr><td>2019</td><td>$500.0</td></tr><tr><td>2020</td><td>1,000.0</td></tr><tr><td>2021</td><td>—</td></tr><tr><td>2022</td><td>1,250.0</td></tr><tr><td>2023</td><td>—</td></tr><tr><td>Thereafter</td><td>2,150.0</td></tr><tr><td></td><td>$4,900.0</td></tr></table>

Question: What's the current growth rate of Components of revenue in total? (in %)
Answer: -0.00929