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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) |
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):
|  |  |  |  |  |  |  | Foreign |  | Post- |  |  |
|  |  |  |  | Available- |  | Currency |  | Retirement |  |  |
|  | Derivative |  | for-Sale |  | Translation |  | Benefit |  |  |
|  | Instruments |  | Securities |  | Adjustments |  | Obligations |  | Total
Balance, December 31, 2014 |  | $ | (61) |  | $ | 10 |  | $ | 84 |  | $ | (10) |  | $ | 23
Other comprehensive income (loss) before reclassifications, net of tax expense (benefit) of $20, $(1), $0 and $1, respectively |  |  | 30 |  |  | (2) |  |  | (164) |  |  | 2 |  |  | (134)
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (expense) 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 expense (benefit) of $(4), $3, $0 and $0, respectively |  |  | (7) |  |  | 5 |  |  | 26 |  |  | — |  |  | 24
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (expense) 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, net of tax expense (benefit) of $0, $2, $0 and $1, respectively |  |  | — |  |  | 3 |  |  | 76 |  |  | 3 |  |  | 82
Amounts reclassified from accumulated other comprehensive (income) loss, net of tax (expense) benefit of $5, $(1), $0 and $0, respectively |  |  | 7 |  |  | (1) |  |  | — |  |  | — |  |  | 6
Net current period other comprehensive income (loss) |  |  | 7 |  |  | 2 |  |  | 76 |  |  | 3 |  |  | 88
Balance, December 31, 2017 |  | $ | (33) |  | $ | 15 |  | $ | 29 |  | $ | (3) |  | $ | 8
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
Foreign currency derivatives |  | $ | (11) |  | $ | 50
Tax (expense) benefit |  |  | 4 |  |  | (20)
Net of tax (expense) benefit |  | $ | (7) |  | $ | 30
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 previously terminated 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):
|  |  |  |  |  |  |  |  |  |  | Statement of
|  | 2017 |  | 2016 |  | 2015 |  | Operations Classification
Forward-starting interest rate swaps |  | $ | (11) |  | $ | (10) |  | $ | (12) |  | Interest expense, net
Treasury rate locks |  |  | (1) |  |  | (1) |  |  | (4) |  | Interest expense, net
Foreign currency derivatives |  |  | — |  |  | (20) |  |  | 51 |  | Other, net
|  |  | (12) |  |  | (31) |  |  | 35 |  | Total before tax
|  |  | 5 |  |  | 12 |  |  | (14) |  | Tax (expense) benefit
Total reclassifications for the period |  | $ | (7) |  | $ | (19) |  | $ | 21 |  | Net of tax

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