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GUARANTEES (Tables) | 3 Months Ended
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Mar. 31, 2019
Guarantees [Abstract] |
Schedule of outstanding guarantees | The following table shows our outstanding guarantees:
|  |  |  | Expiration
(in millions) |  | Total Amounts Committed at March 31, 2019 |  | Less Than 1 Year |  | 1 to 3 Years |  | Over 3 Years
Guarantees |  |  |  |  |  |  |  |
Guarantees supporting commodity transactions of subsidiaries (1) |  | $ | 7.1 |  |  | $ | 7.1 |  |  | $ | — |  |  | $ | — |
Standby letters of credit (2) |  | 102.8 |  |  | 5.7 |  |  | 1.1 |  |  | 96.0 |
Surety bonds (3) |  | 9.2 |  |  | 8.9 |  |  | 0.3 |  |  | — |
Other guarantees (4) |  | 11.0 |  |  | — |  |  | 0.9 |  |  | 10.1 |
Total guarantees |  | $ | 130.1 |  |  | $ | 21.7 |  |  | $ | 2.3 |  |  | $ | 106.1 |
(1) | Includes $5.6 million and $1.5 million to support the business operations of Bluewater and UMERC, respectively.
(2) | At our request or the request of our subsidiaries, financial institutions have issued standby letters of credit for the benefit of third parties that have extended credit to our subsidiaries. These amounts are not reflected on our balance sheets.
(3) | Primarily for workers compensation self-insurance programs and obtaining various licenses, permits, and rights-of-way. These amounts are not reflected on our balance sheets.
(4) | Consists of $11.0 million related to other indemnifications, for which a liability of $10.1 million related to workers compensation coverage was recorded on our balance sheets.

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- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12265-110248 + Details
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