XML 42 R28.htm IDEA: XBRL DOCUMENT
v3.19.3

Leases (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2019
Leases |
Summary of lease balance sheet information | Supplemental balance sheet information for our leases is as follows (in millions):
​ | ​ | ​ | ​ | ​ | ​
Leases |  | Classification |  | ​ | September 30, 2019
Assets |  | ​ | ​ | ​ | ​
Long-term: |  | ​ | ​ | ​ | ​
Operating | ​ | Other assets | ​ | $ | 461
Financing | ​ | Property and equipment, net of accumulated depreciation and amortization | ​ | ​ | 345
Total lease assets | ​ | ​ | ​ | $ | 806
​ | ​ | ​ | ​ | ​ | ​
Liabilities | ​ | ​ | ​ | ​ | ​
Current: | ​ | ​ | ​ | ​ | ​
Operating | ​ | Accrued liabilities | ​ | $ | 91
Financing | ​ | Current portion of long-term debt | ​ | ​ | 33
Long-term: | ​ | ​ | ​ | ​ | ​
Operating | ​ | Other liabilities | ​ | ​ | 387
Financing | ​ | Long-term debt, less current portion | ​ | ​ | 293
Total lease liabilities | ​ | ​ | ​ | $ | 804
Summary of maturities of operating lease liabilities | Minimum contractual obligations for our leases (undiscounted) as of September 30, 2019 are as follows (in millions): ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | Operating |  | ​ | Financing
2019 (excluding nine months ended September 30, 2019) |  | $ | 22 | ​ | $ | 12
2020 |  | ​ | 65 | ​ | ​ | 42
2021 |  | ​ | 59 | ​ | ​ | 40
2022 |  | ​ | 59 | ​ | ​ | 39
2023 | ​ | ​ | 51 | ​ | ​ | 38
Thereafter | ​ | ​ | 416 | ​ | ​ | 273
Total lease payments | ​ | $ | 672 | ​ | $ | 444
Less: interest | ​ | ​ | (194) | ​ | ​ | (118)
Discounted lease liabilities | ​ | $ | 478 | ​ | $ | 326
Summary of maturities of finance lease liabilities | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | Operating |  | ​ | Financing
2019 (excluding nine months ended September 30, 2019) |  | $ | 22 | ​ | $ | 12
2020 |  | ​ | 65 | ​ | ​ | 42
2021 |  | ​ | 59 | ​ | ​ | 40
2022 |  | ​ | 59 | ​ | ​ | 39
2023 | ​ | ​ | 51 | ​ | ​ | 38
Thereafter | ​ | ​ | 416 | ​ | ​ | 273
Total lease payments | ​ | $ | 672 | ​ | $ | 444
Less: interest | ​ | ​ | (194) | ​ | ​ | (118)
Discounted lease liabilities | ​ | $ | 478 | ​ | $ | 326

X
- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
Name: | us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Balance sheet information about leases. + References No definition available. + Details
Name: | wm_LeaseBalanceSheetDisclosureTableTextBlock
Namespace Prefix: | wm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration