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v3.23.2

Long-Term Debt (Narrative) (Details) - Senior Notes - NiSource $ in Millions | Mar. 24, 2023 USD ($)
--- | ---
Debt Instrument [Line Items] |
Senior Notes | $ 750.0
Debt, Weighted Average Interest Rate | 5.25%
Proceeds from Debt, Net of Issuance Costs | $ 742.2

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