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Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract] |
Schedule of Net Funded Status | The following table reconciles the Company’s funded status, both domestic and foreign, as of December 31, 2013 and 2012:
|  | December 31,
|  | 2013 |  | 2012
|  | U.S. |  | Foreign |  | U.S. |  | Foreign
|  | (in millions)
CHANGE IN PROJECTED BENEFIT OBLIGATION: |  |  |  |  |  |  |  |
Benefit obligation as of January 1 |  | $ | 1,210 |  |  | $ | 6,768 |  |  | $ | 1,044 |  |  | $ | 5,761 |
Service cost |  | 16 |  |  | 26 |  |  | 14 |  |  | 18 |
Interest cost |  | 46 |  |  | 515 |  |  | 48 |  |  | 509 |
Employee contributions |  | — |  |  | 4 |  |  | — |  |  | 5 |
Plan amendments |  | — |  |  | — |  |  | 7 |  |  | 1 |
Plan settlements |  | — |  |  | — |  |  | (1 | ) |  | (2 | )
Benefits paid |  | (75 | ) |  | (407 | ) |  | (51 | ) |  | (431 | )
Assumption of a plan due to the resolution of bankruptcy proceedings(1) |  | — |  |  | — |  |  | 51 |  |  | — |
Actuarial (gain) loss |  | (138 | ) |  | (1,436 | ) |  | 98 |  |  | 1,412 |
Effect of foreign currency exchange rate changes |  | — |  |  | (721 | ) |  | — |  |  | (505 | )
Benefit obligation as of December 31 |  | $ | 1,059 |  |  | $ | 4,749 |  |  | $ | 1,210 |  |  | $ | 6,768 |
CHANGE IN PLAN ASSETS: |  |  |  |  |  |  |  |
Fair value of plan assets as of January 1 |  | $ | 883 |  |  | $ | 4,712 |  |  | $ | 762 |  |  | $ | 4,400 |
Actual return on plan assets |  | 81 |  |  | (345 | ) |  | 97 |  |  | 944 |
Employer contributions |  | 52 |  |  | 160 |  |  | 49 |  |  | 161 |
Employee contributions |  | — |  |  | 4 |  |  | — |  |  | 5 |
Plan settlements |  | — |  |  | — |  |  | (1 | ) |  | (2 | )
Benefits paid |  | (75 | ) |  | (407 | ) |  | (51 | ) |  | (431 | )
Assumption of a plan due to the resolution of bankruptcy proceedings(1) |  | — |  |  | — |  |  | 27 |  |  | — |
Effect of foreign currency exchange rate changes |  | — |  |  | (519 | ) |  | — |  |  | (365 | )
Fair value of plan assets as of December 31 |  | $ | 941 |  |  | $ | 3,605 |  |  | $ | 883 |  |  | $ | 4,712 |
RECONCILIATION OF FUNDED STATUS |  |  |  |  |  |  |  |
Funded status as of December 31 |  | $ | (118 | ) |  | $ | (1,144 | ) |  | $ | (327 | ) |  | $ | (2,056 | )
(1) | The Company assumed the pension plan for AES Eastern Energy on December 28, 2012 as part of the settlement of the bankruptcy proceedings. See Note 23—Discontinued Operations and Held for Sale Businesses for further information.
Schedule of Amounts Recognized in Balance Sheet | The following table summarizes the amounts recognized on the Consolidated Balance Sheets related to the funded status of the plans, both domestic and foreign, as of December 31, 2013 and 2012:
|  | 2013 |  | 2012
|  | U.S. |  | Foreign |  | U.S. |  | Foreign
|  | (in millions)
AMOUNTS RECOGNIZED ON THE |  |  |  |  |  |  |  |
CONSOLIDATED BALANCE SHEETS |  |  |  |  |  |  |  |
Noncurrent assets |  | $ | — |  |  | $ | 23 |  |  | $ | — |  |  | $ | — |
Accrued benefit liability—current |  | — |  |  | (4 | ) |  | — |  |  | (3 | )
Accrued benefit liability—noncurrent |  | (118 | ) |  | (1,163 | ) |  | (327 | ) |  | (2,053 | )
Net amount recognized at end of year |  | $ | (118 | ) |  | $ | (1,144 | ) |  | $ | (327 | ) |  | $ | (2,056 | )
Schedule of Accumulated and Projected Benefit Obligations | The following table summarizes the Company’s accumulated benefit obligation, both domestic and foreign, as of December 31, 2013 and 2012:
|  | 2013 |  | 2012 |
|  | U.S. |  | Foreign |  | U.S. |  | Foreign |
|  | (in millions) |
Accumulated Benefit Obligation |  | $ | 1,036 |  |  | $ | 4,686 |  |  | $ | 1,180 |  |  | $ | 6,662 |  |
Information for pension plans with an accumulated benefit obligation in excess of plan assets: |  |  |  |  |  |  |  |  |
Projected benefit obligation |  | $ | 1,059 |  |  | $ | 4,412 |  |  | $ | 1,210 |  |  | $ | 6,398 |  |
Accumulated benefit obligation |  | 1,036 |  |  | 4,366 |  |  | 1,180 |  |  | 6,319 |  |
Fair value of plan assets |  | 941 |  |  | 3,246 |  |  | 883 |  |  | 4,360 |  |
Information for pension plans with a projected benefit obligation in excess of plan assets: |  |  |  |  |  |  |  |  |
Projected benefit obligation |  | $ | 1,059 |  |  | $ | 4,425 |  | (1) | $ | 1,210 |  |  | $ | 6,768 |  |
Fair value of plan assets |  | 941 |  |  | 3,259 |  | (1) | 883 |  |  | 4,712 |  |
(1) | $1.1 billion of the total net unfunded projected benefit obligation is due to Eletropaulo in Brazil.
Schedule of Assumptions Used | The table below summarizes the significant weighted average assumptions used in the calculation of benefit obligation and net periodic benefit cost, both domestic and foreign, as of December 31, 2013 and 2012:
|  | 2013 |  | 2012 |
|  | U.S. |  | Foreign |  | U.S. |  | Foreign |
Benefit Obligation: |  |  |  |  |  |  |  |  |
Discount rates |  | 4.89 | % |  | 10.80 | % | (2) | 3.86 | % |  | 8.28 | % | (2)
Rates of compensation increase |  | 3.94 | % | (1) | 6.44 | % |  | 3.94 | % | (1) | 6.47 | % |
Periodic Benefit Cost: |  |  |  |  |  |  |  |  |
Discount rate |  | 3.86 | % |  | 8.28 | % |  | 4.67 | % |  | 9.54 | % |
Expected long-term rate of return on plan assets |  | 7.15 | % |  | 11.16 | % |  | 7.28 | % |  | 10.81 | % |
Rate of compensation increase |  | 3.94 | % | (1) | 6.47 | % |  | 3.94 | % | (1) | 5.99 | % |
(1) | A U.S. subsidiary of the Company has a defined benefit obligation of $651 million and $764 million as of December 31, 2013 and 2012, respectively, and uses salary bands to determine future benefit costs rather than rates of compensation increases. Rates of compensation increases in the table above do not include amounts related to this specific defined benefit plan.
(2) | Includes an inflation factor that is used to calculate future periodic benefit cost, but is not used to calculate the benefit obligation.
Impact Of One Percent Change In Assumptions | The impact on pension expense from a one percentage point change in these assumptions is shown in the table below (in millions):
Increase of 1% in the discount rate |  | $ | (59 | )
Decrease of 1% in the discount rate |  | 48 |
Increase of 1% in the long-term rate of return on plan assets |  | (52 | )
Decrease of 1% in the long-term rate of return on plan assets |  | 52 |
Schedule of Net Benefit Costs | The following table summarizes the components of the net periodic benefit cost, both domestic and foreign, for the years ended December 31, 2013, 2012, and 2011:
|  | 2013 |  | 2012 |  | 2011
Components of Net Periodic Benefit Cost: |  | U.S. |  | Foreign |  | U.S. |  | Foreign |  | U.S. |  | Foreign
|  | (in millions)
Service cost |  | $ | 16 |  |  | $ | 26 |  |  | $ | 14 |  |  | $ | 18 |  |  | $ | 8 |  |  | $ | 18 |
Interest cost |  | 46 |  |  | 515 |  |  | 48 |  |  | 509 |  |  | 33 |  |  | 564 |
Expected return on plan assets |  | (64 | ) |  | (484 | ) |  | (55 | ) |  | (444 | ) |  | (33 | ) |  | (509 | )
Amortization of prior service cost |  | 5 |  |  | — |  |  | 4 |  |  | — |  |  | 4 |  |  | — |
Amortization of net loss |  | 23 |  |  | 77 |  |  | 19 |  |  | 38 |  |  | 13 |  |  | 22 |
Loss on curtailment |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 5 |
Settlement gain recognized |  | — |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | — |
Total pension cost |  | $ | 26 |  |  | $ | 134 |  |  | $ | 30 |  |  | $ | 122 |  |  | $ | 25 |  |  | $ | 100 |
Schedule of Net Periodic Benefit Cost Not yet Recognized | The following table summarizes the amounts reflected in Accumulated Other Comprehensive Loss, including accumulated other comprehensive loss attributable to noncontrolling interests, on the Consolidated Balance Sheet as of December 31, 2013, that have not yet been recognized as components of net periodic benefit cost and amounts expected to be reclassified to earnings in the next fiscal year:
|  | December 31, 2013
|  | Accumulated Other Comprehensive Income (Loss) |  | Amounts expected to be reclassified to earnings in next fiscal year
|  | U.S. |  | Foreign |  | U.S. |  | Foreign
|  | (in millions)
Prior service cost |  | $ | — |  |  | $ | (1 | ) |  | $ | — |  |  | $ | — |
Unrecognized net actuarial gain (loss) |  | 20 |  |  | (998 | ) |  | — |  |  | (37 | )
Total |  | $ | 20 |  |  | $ | (999 | ) |  | $ | — |  |  | $ | (37 | )
Target / Actual Allocation Of Pension Plan Asset | The following table summarizes the Company’s target allocation for 2013 and pension plan asset allocation, both domestic and foreign, as of December 31, 2013 and 2012:
|  |  |  |  |  | Percentage of Plan Assets as of December 31,
|  | Target Allocations |  | 2013 |  | 2012
Asset Category |  | U.S. |  | Foreign |  | U.S. |  | Foreign |  | U.S. |  | Foreign
Equity securities |  | 45 | % |  | 15% - 29% |  | 37.09 | % |  | 19.84 | % |  | 32.28 | % |  | 19.76 | %
Debt securities |  | 51 | % |  | 60% - 85% |  | 46.97 | % |  | 75.32 | % |  | 46.66 | % |  | 76.21 | %
Real estate |  | 2 | % |  | 0% - 4% |  | 2.44 | % |  | 2.77 | % |  | — | % |  | 2.57 | %
Other |  | 2 | % |  | 0% - 6% |  | 13.50 | % |  | 2.07 | % |  | 21.06 | % |  | 1.46 | %
Total pension assets |  |  |  |  |  | 100.00 | % |  | 100.00 | % |  | 100.00 | % |  | 100.00 | %
Schedule of Allocation of Plan Assets | The asset allocation is reviewed periodically to determine a suitable asset allocation which seeks to manage risk through portfolio diversification and takes into account, among other possible factors, the above-stated objectives, in conjunction with current funding levels, cash flow conditions and economic and industry trends. The following table summarizes the Company’s U.S. plan assets by category of investment and level within the fair value hierarchy as of December 31, 2013 and 2012:
|  | December 31, 2013 |  | December 31, 2012
U.S. Plans |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (in millions)
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  | $ | 46 |  |  | $ | — |  |  | $ | — |  |  | $ | 46 |  |  | $ | 134 |  |  | $ | — |  |  | $ | — |  |  | $ | 134 |
Mutual funds |  | 303 |  |  | — |  |  | — |  |  | 303 |  |  | 151 |  |  | — |  |  | — |  |  | 151 |
Debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government debt securities |  | 24 |  |  | 8 |  |  | — |  |  | 32 |  |  | 32 |  |  | — |  |  | — |  |  | 32 |
Corporate debt securities |  | — |  |  | 159 |  |  | — |  |  | 159 |  |  | 4 |  |  | 149 |  |  | — |  |  | 153 |
Mutual funds(1) |  | 251 |  |  | — |  |  | — |  |  | 251 |  |  | 227 |  |  | — |  |  | — |  |  | 227 |
Real Estate: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real Estate |  | — |  |  | 23 |  |  | — |  |  | 23 |  |  | — |  |  | — |  |  | — |  |  | — |
Other: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | 56 |  |  | — |  |  | — |  |  | 56 |  |  | 43 |  |  | — |  |  | — |  |  | 43 |
Other investments |  | 40 |  |  | 31 |  |  | — |  |  | 71 |  |  | 38 |  |  | 105 |  |  | — |  |  | 143 |
Total plan assets |  | $ | 720 |  |  | $ | 221 |  |  | $ | — |  |  | $ | 941 |  |  | $ | 629 |  |  | $ | 254 |  |  | $ | — |  |  | $ | 883 |
(1) | Mutual funds categorized as debt securities consist of mutual funds for which debt securities are the primary underlying investment.
Fair Value Of Plan Assets By Category / Level (Foreign) | The investment strategy of the foreign plans seeks to maximize return on investment while minimizing risk. The assumed asset allocation has less exposure to equities in order to closely match market conditions and near term forecasts. The following table summarizes the Company’s foreign plan assets by category of investment and level within the fair value hierarchy as of December 31, 2013 and 2012:
|  | December 31, 2013 |  | December 31, 2012
Foreign Plans |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
|  | (in millions)
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock |  | $ | 23 |  |  | $ | — |  |  | $ | — |  |  | $ | 23 |  |  | $ | 28 |  |  | $ | — |  |  | $ | — |  |  | $ | 28 |
Mutual funds |  | 322 |  |  | — |  |  | — |  |  | 322 |  |  | 457 |  |  | — |  |  | — |  |  | 457 |
Private equity(1) |  | — |  |  | — |  |  | 370 |  |  | 370 |  |  | — |  |  | — |  |  | 446 |  |  | 446 |
Debt securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | — |  |  | 2 |  |  | — |  |  | 2 |  |  | — |  |  | 3 |  |  | — |  |  | 3 |
Unsecured debentures |  | — |  |  | 13 |  |  | — |  |  | 13 |  |  | — |  |  | 16 |  |  | — |  |  | 16 |
Government debt securities |  | 12 |  |  | 95 |  |  | — |  |  | 107 |  |  | 9 |  |  | 206 |  |  | — |  |  | 215 |
Mutual funds(2) |  | 174 |  |  | 2,410 |  |  | — |  |  | 2,584 |  |  | 139 |  |  | 3,208 |  |  | — |  |  | 3,347 |
Other debt securities |  | — |  |  | 9 |  |  | — |  |  | 9 |  |  | — |  |  | 10 |  |  | — |  |  | 10 |
Real estate: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Real estate(1) |  | — |  |  | — |  |  | 100 |  |  | 100 |  |  | — |  |  | — |  |  | 121 |  |  | 121 |
Other: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | 15 |  |  | — |  |  | — |  |  | 15 |  |  | 1 |  |  | — |  |  | — |  |  | 1 |
Participant loans(3) |  | — |  |  | — |  |  | 60 |  |  | 60 |  |  | — |  |  | — |  |  | 68 |  |  | 68 |
Total plan assets |  | $ | 546 |  |  | $ | 2,529 |  |  | $ | 530 |  |  | $ | 3,605 |  |  | $ | 634 |  |  | $ | 3,443 |  |  | $ | 635 |  |  | $ | 4,712 |
(1) | Plan assets of our Brazilian subsidiaries are invested in private equities and commercial real estate through the plan administrator in Brazil. The fair value of these assets is determined using the income approach through annual appraisals based on a discounted cash flow analysis.
(2) | Mutual funds categorized as debt securities consist of mutual funds for which debt securities are the primary underlying investment.
(3) | Loans to participants are stated at cost, which approximates fair value.
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets | The following table presents a reconciliation of all plan assets measured at fair value using significant unobservable inputs (Level 3) for the years ended December 31, 2013 and 2012:
|  | 2013 |  | 2012
|  | (in millions)
Balance at January 1 |  | $ | 635 |  |  | $ | 755 |
Actual return on plan assets: |  |  |  |
Returns relating to assets still held at reporting date |  | (26 | ) |  | (64 | )
Returns relating to assets sold during the period |  |  |  |
Purchases, sales and settlements, net |  | — |  |  | 3 |
Change due to exchange rate changes |  | (79 | ) |  | (59 | )
Balance at December 31 |  | $ | 530 |  |  | $ | 635 |
Scheduled Cash Flows For Employer Contributions And Expected Future Benefit Payments | The following table summarizes the estimated cash flows for U.S. and foreign expected employer contributions and expected future benefit payments, both domestic and foreign:
|  | U.S. |  | Foreign
|  | (in millions)
Expected employer contribution in 2014 |  | $ | 56 |  |  | $ | 167 |
Expected benefit payments for fiscal year ending: |  |  |  |
2014 |  | 62 |  |  | 381 |
2015 |  | 63 |  |  | 396 |
2016 |  | 64 |  |  | 409 |
2017 |  | 66 |  |  | 425 |
2018 |  | 67 |  |  | 440 |
2019 - 2023 |  | 361 |  |  | 2,437 |

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