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Accumulated Other Comprehensive Loss (Tables) | 6 Months Ended
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Jun. 30, 2017
Equity [Abstract] |
Components of Accumulated Other Comprehensive Loss | The changes in the balances of each component of accumulated other comprehensive loss, net of tax benefit, which is included as a component of Waste Management, Inc. stockholders’ equity, are as follows (in millions, with amounts in parentheses representing increases to accumulated other comprehensive loss):
|  | Derivative Instruments |  |  | Available- for-Sale Securities |  |  | Foreign Currency Translation Adjustments |  |  | Post- Retirement Benefit Obligation |  |  | Total |
Balance, December 31, 2016 |  | $ | (40 | ) |  | $ | 13 |  |  | $ | (47 | ) |  | $ | (6 | ) |  | $ | (80 | )
Other comprehensive income before reclassifications, net of tax expense of $0, $1, $0 and $0, respectively |  |  | — |  |  |  | 2 |  |  |  | 40 |  |  |  | 1 |  |  |  | 43 |
Amounts reclassified from accumulated other comprehensive loss, net of tax benefit of $2, $0, $0 and $0, respectively |  |  | 4 |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4 |
Net current period other comprehensive income |  |  | 4 |  |  |  | 2 |  |  |  | 40 |  |  |  | 1 |  |  |  | 47 |
Balance, June 30, 2017 |  | $ | (36 | ) |  | $ | 15 |  |  | $ | (7 | ) |  | $ | (5 | ) |  | $ | (33 | )
Reclassification of Component of Accumulated Other Comprehensive Loss Associated with Cash Flow Hedges | The significant amounts reclassified out of each component of accumulated other comprehensive loss associated with our cash flow hedges are as follows (in millions, with amounts in parentheses representing debits to the statement of operations classification):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |  |  | Statement of Operations Classification
|  | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |  |
Forward-starting interest rate swaps |  | $ | (3 | ) |  | $ | (3 | ) |  | $ | (6 | ) |  | $ | (6 | ) |  | Interest expense, net
Foreign currency derivatives |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (20 | ) |  | Other, net
|  |  | (3 | ) |  |  | (3 | ) |  |  | (6 | ) |  |  | (26 | ) |  | Total before tax
|  |  | 1 |  |  |  | 1 |  |  |  | 2 |  |  |  | 10 |  |  | Tax benefit
Total reclassifications for the period |  | $ | (2 | ) |  | $ | (2 | ) |  | $ | (4 | ) |  | $ | (16 | ) |  | Net of tax

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- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669686-108580 + Details
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