v3.19.1

Derivative Instruments (Details 5) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax |  | $ (25) | $ 55
Reclassification adjustment for loss on cash flow hedges realized in net income (loss) | [1],[2] | 2 | (7)
Depreciation expense [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax | [3],[4] | 0 | 1
Reclassification adjustment for loss on cash flow hedges realized in net income (loss) | [1],[2],[3],[4] | 0 | (1)
Interest Rate Hedging Instruments |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax | [3],[4] | (25) | 54
Reclassification adjustment for loss on cash flow hedges realized in net income (loss) | [1],[2],[3],[4] | $ 2 | $ (6)
[1] | Cumulative cash flow hedge gains (losses) attributable to Calpine, net of tax, remaining in AOCI were $59 million and $34 million at March 31, 2019 and December 31, 2018, respectively. Cumulative cash flow hedge losses attributable to the noncontrolling interest, net of tax, remaining in AOCI were $3 million and $3 million at March 31, 2019 and December 31, 2018, respectively.
[2] | Includes losses of $1 million and nil that were reclassified from AOCI to interest expense for the three months ended March 31, 2019 and 2018, respectively, where the hedged transactions became probable of not occurring.
[3] | We did not record any material gain (loss) on hedge ineffectiveness related to our interest rate hedging instruments designated as cash flow hedges during the three months ended March 31, 2018. Upon the adoption of Accounting Standards Update 2017-12 on January 1, 2019, hedge ineffectiveness is no longer separately measured and recorded in earnings.
[4] | We recorded an income tax expense of nil and $11 million for the three months ended March 31, 2019 and 2018, respectively, in AOCI related to our cash flow hedging activities.

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