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v3.7.0.1

Debt - Additional Information (Detail) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 31, 2016 USD ($) | Mar. 31, 2016 CAD | Mar. 31, 2016 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2017 CAD | Jun. 30, 2017 CAD | Dec. 31, 2016 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |
Current portion of long-term debt |  |  |  | $ 390,000,000 |  |  | $ 417,000,000
Debt and capital lease obligations |  |  |  | 9,057,000,000 |  |  | 9,310,000,000
Repayments |  |  |  | 253,000,000 |  |  |
Foreign Currency Derivatives [Member] | Cash Flow Hedging [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Cash received in termination of foreign exchange cross currency swaps |  |  | $ 67,000,000 |  |  |  |
Expense associated with termination of foreign exchange cross currency swaps |  |  | $ 8,000,000 |  |  |  |
Commercial Paper [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt term | 397 days |  |  |  |  |  |
Tax-exempt Bonds [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt classified as long-term due to intent and ability to refinance on long-term basis |  |  |  | 561,000,000 |  |  |
Tax-exempt Bonds [Member] | Variable Rate [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Variable-rate tax-exempt bonds |  |  |  | 471,000,000 |  |  |
Domestic Line of Credit [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Credit Facility, aggregate capacity |  |  |  | 2,250,000,000 |  |  |
Committed and Uncommitted [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Letters of credit outstanding revolving credit facility |  |  |  | 461,000,000 |  |  |
Canadian Term Loan [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum term credit | CAD |  |  |  |  |  | CAD 460,000,000 |
Repayments |  |  |  | 74,000,000 | CAD 99,000,000 |  |
Canadian Term Loan [Member] | Canadian Subsidiaries [Member] | WM Holdings [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Repayments of intercompany debt | CAD |  | CAD 370,000,000 |  |  |  |  |
Debt Other Than Commercial Paper [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Current portion of long-term debt |  |  |  | 206,000,000 |  |  |
Tax-exempt Bonds [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Current portion of long-term debt |  |  |  | 148,000,000 |  |  |
Debt and capital lease obligations |  |  |  | $ 2,305,000,000 |  |  | 2,304,000,000
Tax-exempt Bonds [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate |  |  |  | 5.70% |  | 5.70% |
Domestic Line of Credit [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt and capital lease obligations |  |  |  | $ 0 |  |  | 426,000,000
Credit Facility, aggregate capacity |  |  |  | 2,250,000,000 |  |  | 2,250,000,000
Letters of credit outstanding revolving credit facility |  |  |  | 780,000,000 |  |  |
Unused and available credit capacity |  |  |  | $ 1,217,000,000 |  |  |
Maturity date of credit facility |  |  |  | Jul. 30, 2020 | Jul. 30, 2020 |  |
Repayments |  |  |  | $ 426,000,000 |  |  |
Commercial Paper Program [Member] | Commercial Paper [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Commercial paper program maximum borrowing capacity | $ 1,500,000,000 |  |  | 1,500,000,000 |  |  |
Foreign Line of Credit [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt and capital lease obligations |  |  |  | $ 171,000,000 |  |  | $ 239,000,000
Credit Facility, aggregate capacity | CAD |  |  |  |  |  | CAD 50,000,000 |
Letters of credit outstanding revolving credit facility | CAD |  |  |  |  |  | 0 |
Maturity date of credit facility |  |  |  | Mar. 24, 2019 | Mar. 24, 2019 |  |
Outstanding borrowings under credit facility | CAD |  |  |  |  |  | CAD 0 |
Commercial Paper [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt and capital lease obligations |  |  |  | $ 253,000,000 |  |  |
Commercial Paper [Member] | Long Term Borrowings [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt and capital lease obligations |  |  |  | 69,000,000 |  |  |
Commercial Paper [Member] | Current Borrowings [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt and capital lease obligations |  |  |  | 184,000,000 |  |  |
6.10% Senior Notes Mature in March 2018 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt classified as long-term due to intent and ability to refinance on long-term basis |  |  |  | $ 590,000,000 |  |  |
Interest rate |  |  |  | 6.10% |  | 6.10% |

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- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The amount of cash received during the period on settlement of a hedge. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The net cash inflow or cash outflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 9 -Subparagraph c -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3098-108585 + Details
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- Definition The cash outflow for the payment of a long-term borrowing made from a related party where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth. Alternate caption: Payments for Advances from Affiliates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Definition The portion of short-term borrowings, current maturities of long-term debt and capital lease obligations and borrowings subject to refinancing within the next twelve months, classified as long-term obligations due to the intent and ability to refinance on a long-term basis. + References No definition available. + Details
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