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Debt | 6 Months Ended
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Jun. 30, 2019
Debt |
Debt | 3. Debt The following table summarizes the major components of debt as of each balance sheet date (in millions) and provides the maturities and interest rate ranges of each major category as of June 30, 2019:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2019 |  | 2018
$2.75 billion revolving credit facility (weighted average interest rate of 3.1% as of December 31, 2018) | ​ | $ | — | ​ | $ | 11
Commercial paper program (weighted average interest rate of 2.9% as of December 31, 2018) | ​ | ​ | — | ​ | ​ | 990
Senior notes, maturing through 2049, interest rates ranging from 2.4% to 7.75% (weighted average interest rate of 3.9% as of June 30, 2019 and 4.3% as of December 31, 2018) | ​ |  | 9,965 | ​ |  | 6,222
Tax-exempt bonds, maturing through 2048, fixed and variable interest rates ranging from 1.35% to 4.3% (weighted average interest rate of 2.4% as of June 30, 2019 and 2.35% as of December 31, 2018) | ​ |  | 2,294 | ​ |  | 2,388
Financing leases and other, maturing through 2056, interest rates up to 9% | ​ |  | 563 | ​ |  | 467
Debt issuance costs, discounts and other | ​ |  | (83) | ​ |  | (52)
​ | ​ |  | 12,739 | ​ |  | 10,026
Current portion of long-term debt | ​ |  | 116 | ​ |  | 432
​ | ​ | $ | 12,623 | ​ | $ | 9,594
​ Debt Classification As of June 30, 2019, we had $1.2 billion of debt maturing within the next 12 months, including (i) $600 million of 4.75% senior notes that mature in June 2020; (ii) $524 million of tax-exempt bonds with term interest rate periods that expire within the next 12 months, which is prior to their scheduled maturities, and (iii) $116 million of other debt with scheduled maturities within the next 12 months, including $42 million of tax-exempt bonds. As of June 30, 2019, we have classified $1.1 billion of debt maturing in the next 12 months as long-term because we have the intent and ability to refinance these borrowings on a long-term basis as supported by the forecasted available capacity under our $2.75 billion long-term U.S. and Canadian revolving credit facility (“$2.75 billion revolving credit facility”), as discussed below. The remaining $116 million is classified as current obligations. As of June 30, 2019, we also have $268 million of variable-rate tax-exempt bonds that are supported by letters of credit under our $2.75 billion revolving credit facility. The interest rates on our variable-rate tax-exempt bonds are generally reset on either a daily or weekly basis through a remarketing process. All recent tax-exempt bond remarketings have successfully placed Company bonds with investors at market-driven rates and we currently expect future remarketings to be successful. However, if the remarketing agent is unable to remarket our bonds, the remarketing agent can put the bonds to us. In the event of a failed remarketing, we have the availability under our $2.75 billion revolving credit facility to fund these bonds until they are remarketed successfully. Accordingly, we have also classified these borrowings as long-term in our Condensed Consolidated Balance Sheet as of June 30, 2019. Access to and Utilization of Credit Facilities and Commercial Paper Program $2.75 Billion Revolving Credit Facility — Our $2.75 billion revolving credit facility provides us with credit capacity to be used for either cash borrowings or to support letters of credit or commercial paper. The rates we pay for outstanding U.S. or Canadian loans are generally based on LIBOR or CDOR, respectively, plus a spread depending on the Company’s debt rating assigned by Moody’s Investors Service and Standard and Poor’s. As of June 30, 2019, we had no borrowings outstanding under this facility. We had $512 million of letters of credit issued and no outstanding borrowings under our commercial paper program, both supported by this facility, leaving unused and available credit capacity of $2.2 billion as of June 30, 2019. WM Holdings, a wholly-owned subsidiary of WM, guarantees all of the obligations under the $2.75 billion revolving credit facility. Commercial Paper Program — We have a commercial paper program that enables us to borrow funds for up to 397 days at competitive interest rates. The rates we pay for outstanding borrowings are based on the term of the notes. The commercial paper program is fully supported by our $2.75 billion revolving credit facility. As of June 30, 2019, we had no outstanding borrowings under our commercial paper program. Other Letter of Credit Facilities — As of June 30, 2019, we utilized $542 million of other letter of credit facilities, which are both committed and uncommitted, with terms maturing through December 2020. Debt Borrowings and Repayments $2.75 Billion Revolving Credit Facility — During the six months ended June 30, 2019, we repaid C$15 million, or $11 million, of Canadian borrowings under our $2.75 billion revolving credit facility with available cash. Senior Notes — In May 2019, WM issued $4.0 billion of senior notes consisting of: ​
| ● | $750 million of 2.95% senior notes due June 15, 2024;
| ● | $750 million of 3.20% senior notes due June 15, 2026;
| ● | $1.0 billion of 3.45% senior notes due June 15, 2029;
| ● | $500 million of 4.00% senior notes due July 15, 2039; and
| ● | $1.0 billion of 4.15% senior notes due July 15, 2049.
​ The net proceeds from these debt issuances were $3.97 billion. Concurrently, we used $344 million of the net proceeds from the newly issued senior notes to retire $257 million of certain high-coupon senior notes. The cash paid includes the principal amount of the debt retired, $84 million of related premiums, which are classified as loss on early extinguishment of debt in our Condensed Consolidated Statement of Operations, and $3 million of accrued interest. The principal amount of senior notes redeemed within each series was as follows: ​
| ● | $304 million of WM Holdings 7.10% senior notes due 2026, of which $56 million were tendered;
| ● | $395 million of WM 7.00% senior notes due 2028, of which $64 million were tendered;
| ● | $139 million of WM 7.375% senior notes due 2029, of which $58 million were tendered;
| ● | $210 million of WM 7.75% senior notes due 2032, of which $57 million were tendered; and
| ● | $274 million of WM 6.125% senior notes due 2039, of which $22 million were tendered.
​ We used a portion of the proceeds to repay our commercial paper borrowings as discussed further below. We intend to use the remaining net proceeds to pay a portion of the consideration related to our pending acquisition of Advanced Disposal Services, Inc. (“Advanced Disposal”), pursuant to an Agreement and Plan of Merger (the “Merger Agreement”) which is discussed further in Note 9, and for general corporate purposes. The newly-issued senior notes due 2024, 2026, 2029 and 2039 include a special mandatory redemption feature, which provides that if the acquisition of Advanced Disposal is not completed on or prior to July 14, 2020, or if, prior to such date, the Merger Agreement is terminated for any reason, we will be required to redeem all of the outstanding notes equal to 101% of the aggregate principal amounts of such notes, plus accrued but unpaid interest on the principal amount of such notes. ​ Commercial Paper Program — During the six months ended June 30, 2019, we made net cash repayments of $1.0 billion (net of the related discount on issuance). During the first quarter of 2019, we had net cash borrowings of $357 million (net of the related discount on issuance), which were primarily used to support our acquisition of Petro Waste Environmental LP (“Petro Waste”), which is discussed further in Note 9, and for general corporate purposes. In the second quarter of 2019, we repaid the outstanding balance with proceeds from the May 2019 issuance of senior notes discussed above. Tax-Exempt Bonds — During the six months ended June 30, 2019, we repaid $94 million of our tax-exempt bonds with available cash. Financing Leases and Other — The change during the six months ended June 30, 2019, is due to an increase of $119 million primarily related to non-cash financing arrangements offset, in part, by $23 million of net cash repayments of debt at maturity.

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- Definition The entire disclosure for debt and capital lease obligations can be reported. Information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Also includes descriptions and amounts of capital leasing arrangements that consist of direct financing, sales type and leveraged leases. Disclosure may include the effect on the balance sheet and the income statement resulting from a change in lease classification for leases that at inception would have been classified differently had guidance been in effect at the inception of the original lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -URI http://asc.fasb.org/topic&trid=2208923 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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