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v3.3.1.900

Benefit Plans (Narrative) (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($) plan | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined contribution plan, number of plans | 4 |  |
Defined contribution plan, award vesting period | 5 years |  |
Defined contribution plan contributions | $ | $ 18 | $ 22 | $ 23
Defined benefit plan, number of plans disclosure | 33 |  |
U.S. Non-Union Number of Defined Contribution Plans | 2 |  |
Parent Company Number of Defined Contribution Plans | 1 |  |
IPL Number of Non-Union and Union Defined Contribution Plans | 1 |  |
DPL Number of Non-Union Defined Contribution Plans | 1 |  |
DPL Number of Union Defined Contribution Plans | 1 |  |
U.S. Defined Benefit Plans |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit plan, number of plans disclosure | 5 |  |

X
- Definition DPL Number of Non-Union Defined Contribution Plans + References No definition available. + Details
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- Definition DPL Number of Union Defined Contribution Plans + References No definition available. + Details
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- Definition Represents the number of defined benefit plans covering the employees at certain subsidiaries + References No definition available. + Details
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- Definition Defined Contribution Plan, Award Vesting Period + References No definition available. + Details
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- Definition The amount of the contributions made during the period to defined contribution plans + References No definition available. + Details
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- Definition Defined Contribution Plan, Number of Plans + References No definition available. + Details
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- Definition IPL Number of Non-Union Defined Contribution Plans + References No definition available. + Details
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- Definition Parent Company Number of Defined Contribution Plans + References No definition available. + Details
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- Definition U.S. non-union Defined Contribution Plans + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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