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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2016
Equity [Abstract] |
Components of Accumulated Other Comprehensive Income (Loss) | The changes in the balances of each component of accumulated other comprehensive income (loss), net of tax, which is included as a component of Waste Management, Inc. stockholders’ equity, are as follows (in millions, with amounts in parentheses representing decreases to accumulated other comprehensive income):
|  | Derivative Instruments |  |  | Available- for-Sale Securities |  |  | Foreign Currency Translation Adjustments |  |  | Post- Retirement Benefit Obligation |  |  | Total |
Balance, December 31, 2013 |  | $ | (62 | ) |  | $ | 6 |  |  | $ | 208 |  |  | $ | 2 |  |  | $ | 154 |
Other comprehensive income (loss) before reclassifications, net of tax provision (benefit) of $4, $2, $0 and $(8), respectively |  |  | 6 |  |  |  | 4 |  |  |  | (107 | ) |  |  | (11 | ) |  |  | (108 | )
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (provision) benefit of $(3), $0, $0 and $0, respectively |  |  | (5 | ) |  |  | — |  |  |  | (17 | ) |  |  | (1 | ) |  |  | (23 | )
Net current period other comprehensive income (loss) |  |  | 1 |  |  |  | 4 |  |  |  | (124 | ) |  |  | (12 | ) |  |  | (131 | )
Balance, December 31, 2014 |  | $ | (61 | ) |  | $ | 10 |  |  | $ | 84 |  |  | $ | (10 | ) |  | $ | 23 |
Other comprehensive income (loss) before reclassifications, net of tax provision (benefit) of $20, $(1), $0 and $1, respectively |  |  | 30 |  |  |  | (2 | ) |  |  | (164 | ) |  |  | 2 |  |  |  | (134 | )
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (provision) benefit of $(14), $0, $0 and $0, respectively |  |  | (21 | ) |  |  | — |  |  |  | 5 |  |  |  | — |  |  |  | (16 | )
Net current period other comprehensive income (loss) |  |  | 9 |  |  |  | (2 | ) |  |  | (159 | ) |  |  | 2 |  |  |  | (150 | )
Balance, December 31, 2015 |  | $ | (52 | ) |  | $ | 8 |  |  | $ | (75 | ) |  | $ | (8 | ) |  | $ | (127 | )
Other comprehensive income (loss) before reclassifications, net of tax provision (benefit) of $(4), $3, $0 and $0, respectively |  |  | (7 | ) |  |  | 5 |  |  |  | 26 |  |  |  | — |  |  |  | 24 |
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (provision) benefit of $12, $0, $0 and $1, respectively |  |  | 19 |  |  |  | — |  |  |  | 2 |  |  |  | 2 |  |  |  | 23 |
Net current period other comprehensive income (loss) |  |  | 12 |  |  |  | 5 |  |  |  | 28 |  |  |  | 2 |  |  |  | 47 |
Balance, December 31, 2016 |  | $ | (40 | ) |  | $ | 13 |  |  | $ | (47 | ) |  | $ | (6 | ) |  | $ | (80 | )
Other Comprehensive Income (Loss) Before Reclassifications Associated with the Effective Portion of Derivatives Designated as Cash Flow Hedges | The amounts of other comprehensive income (loss) before reclassifications associated with the effective portion of derivatives designated as cash flow hedges for the years ended December 31 are as follows (in millions):
|  | 2016 |  |  | 2015 |  |  | 2014 |
Forward-starting interest rate swaps |  | $ | — |  |  | $ | — |  |  | $ | (8 | )
Foreign currency derivatives |  |  | (11 | ) |  |  | 50 |  |  |  | 23 |
Electricity commodity derivatives |  |  | — |  |  |  | — |  |  |  | (5 | )
Total before tax |  |  | (11 | ) |  |  | 50 |  |  |  | 10 |
Tax (provision) benefit |  |  | 4 |  |  |  | (20 | ) |  |  | (4 | )
Net of tax (provision) benefit |  | $ | (7 | ) |  | $ | 30 |  |  | $ | 6 |
Reclassification of Component of Accumulated Other Comprehensive Income (Loss) Associated with Cash Flow Hedges | The significant amounts reclassified out of each component of accumulated other comprehensive income (loss) associated with our cash flow hedges for the years ended December 31 are as follows (in millions, with amounts in parentheses representing debits to the statement of operations classification):
|  | 2016 |  |  | 2015 |  |  | 2014 |  |  | Statement of Operations Classification
Forward-starting interest rate swaps |  | $ | (10 | ) |  | $ | (12 | ) |  | $ | (10 | ) |  | Interest expense, net
Treasury rate locks |  |  | (1 | ) |  |  | (4 | ) |  |  | (1 | ) |  | Interest expense, net
Foreign currency derivatives |  |  | (20 | ) |  |  | 51 |  |  |  | 27 |  |  | Other, net
Electricity commodity derivatives |  |  | — |  |  |  | — |  |  |  | (8 | ) |  | Operating revenues
|  |  | (31 | ) |  |  | 35 |  |  |  | 8 |  |  | Total before tax
|  |  | 12 |  |  |  | (14 | ) |  |  | (3 | ) |  | Tax (provision) benefit
Total reclassifications for the period |  | $ | (19 | ) |  | $ | 21 |  |  | $ | 5 |  |  | Net of tax

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- Definition Tabular disclosure of the effective portion of the gains and losses on derivative instruments designated (and non-derivative instruments) designated and qualifying in cash flow hedges and net investment hedges that was recognized in other comprehensive income (loss) during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64837297&loc=SL5624171-113959 + Details
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