Fundies. English
Segment disclosures
Company overviewNiSource Inc.
Each reported dimension combination stays separate. Revenue and operating income are shown as reported, with their dates and sources.
Revenue · Reported segment facts
111 dimension combinations 778 retained observations 14 reported periods Partial retained history
Counts describe retained dimensioned rows only. Periods and members can change across reports, and this view does not infer missing values or expected segment totals.
Commercial · Columbia Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 98200000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 553800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 124600000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 455600000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 331000000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 763700000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 95100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 527800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 126200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 432700000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 306500000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 580300000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 78300000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 395600000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 96900000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 317300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 220400000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 598900000 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 78500000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 435500000 | USD | 20241030 | Open filing evidence |
Commercial · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 199200000 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 249000000 Restated | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 156600000 | USD | 20231101 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 437600000 | USD | 20231101 | Open filing evidence |
Commercial · Gas Distribution Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 847900000 | USD | 20240221 | Open filing evidence |
Commercial · Gen Co Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:GenCoOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 6500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 6500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Commercial · NIPSCO Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 270000000 | USD | 20260211 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 199200000 | USD | 20250212 | Open filing evidence |
Commercial · NIPSCO Operations · NIPSCO Electric Generation
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 161000000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 321100000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 160100000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 620400000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 172700000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 470000000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 154400000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 297300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 142900000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 578100000 | USD | 20250212 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 156600000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 437600000 | USD | 20241030 | Open filing evidence |
Commercial · NIPSCO Operations · NIPSCO Gas Distribution
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 45500000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 148600000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 103100000 | USD | 20250507 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 28600000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 134000000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 30700000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 105400000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 74700000 | USD | 20250507 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 30000000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 185700000 | USD | 20241030 | Open filing evidence |
Commercial · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
Commercial · NIPSCO Electric Generation · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 142900000 | USD | 20240508 | Open filing evidence |
Industrial · Columbia Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 36000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 133700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 40300000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 97700000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 57400000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 167400000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 36000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 121500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 37600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 85500000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 47900000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 144200000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 32000000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 105100000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 33000000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 73100000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 40100000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 139000000 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 30200000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 102900000 | USD | 20241030 | Open filing evidence |
Industrial · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 79000000 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 87000000 Restated | USD | 20260211 | Open filing evidence |
Industrial · Gen Co Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:GenCoOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Industrial · NIPSCO Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 100200000 | USD | 20260211 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 79000000 | USD | 20250212 | Open filing evidence |
Industrial · NIPSCO Operations · NIPSCO Electric Generation
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 133500000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 276100000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 142600000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 499100000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 124800000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 360400000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 119700000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 235600000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 115900000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 474100000 | USD | 20250212 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 115900000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 362700000 | USD | 20241030 | Open filing evidence |
Industrial · NIPSCO Operations · NIPSCO Gas Distribution
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 22600000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 54000000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 31400000 | USD | 20250507 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 16400000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 56300000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 16100000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 39900000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 23800000 | USD | 20250507 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 16100000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 66400000 | USD | 20241030 | Open filing evidence |
Industrial · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
Industrial · NIPSCO Electric Generation · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 115900000 | USD | 20240508 | Open filing evidence |
Misc. · Columbia Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 8500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 31200000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 8500000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 22700000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 14200000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 35900000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 6700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 27400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 8700000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 20700000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 10900000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 26300000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 2900000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 15400000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 4300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 12500000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 8200000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 33400000 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 6400000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 26300000 | USD | 20241030 | Open filing evidence |
Misc. · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 15400000 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 14800000 Restated | USD | 20260211 | Open filing evidence |
Misc. · Gen Co Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:GenCoOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Misc. · NIPSCO Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 13500000 | USD | 20260211 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 15400000 | USD | 20250212 | Open filing evidence |
Misc. · NIPSCO Operations · NIPSCO Electric Generation
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | -1700000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | -900000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | -1400000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 13700000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 2700000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 10600000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 4700000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 7900000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 3200000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 21400000 | USD | 20250212 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 12400000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 17000000 | USD | 20241030 | Open filing evidence |
Misc. · NIPSCO Operations · NIPSCO Gas Distribution
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 3300000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 8000000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 4700000 | USD | 20250507 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 1900000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 12500000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 2600000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 10500000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 7900000 | USD | 20250507 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 2100000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 10900000 | USD | 20241030 | Open filing evidence |
Misc. · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
Misc. · NIPSCO Electric Generation · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 4700000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 7900000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 3200000 | USD | 20240508 | Open filing evidence |
Misc. · NIPSCO Gas Distribution · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 7900000 | USD | 20240508 | Open filing evidence |
Offsystem · Columbia Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:OffsystemMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 6800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 35100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 11500000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 28300000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 16800000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 75800000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 13800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 58900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 22800000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 45100000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 22300000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 42600000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 7100000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 30500000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 10600000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 23400000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 12800000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 60600000 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 9800000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 49900000 | USD | 20241030 | Open filing evidence |
Offsystem · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:OffsystemMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
Offsystem · NIPSCO Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:OffsystemMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20250212 | Open filing evidence |
Offsystem · NIPSCO Operations · NIPSCO Gas Distribution
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:OffsystemMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
Offsystem · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:OffsystemMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 0 | USD | 20241030 | Open filing evidence |
Public Authority · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 11500000 | USD | 20240221 | Open filing evidence |
Public Authority · Gas Distribution Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 0 | USD | 20240221 | Open filing evidence |
Public Authority · Gen Co Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementBusinessSegmentsAxis=nix:GenCoOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Public Authority · NIPSCO Operations · NIPSCO Electric Generation
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 2200000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 8100000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 2000000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 6000000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 1900000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 4000000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 2100000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 11500000 | USD | 20250212 | Open filing evidence |
| 2023-07-01 – 2023-09-30 | 1600000 | USD | 20241030 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 5500000 | USD | 20241030 | Open filing evidence |
Public Authority · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20240221 | Open filing evidence |
Public Authority · NIPSCO Electric Generation · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 2100000 | USD | 20240508 | Open filing evidence |
Residential · Columbia Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 343400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 1652500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 399900000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 1309100000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 909200000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 2279900000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 328100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 1576300000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 397000000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1248200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 851200000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1833800000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 296900000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1257200000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 332300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 960300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 628000000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1827500000 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-09-30 | 1311900000 | USD | 20241030 | Open filing evidence |
Residential · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 531400000 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 635000000 Restated | USD | 20260211 | Open filing evidence |
Residential · Gen Co Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:GenCoOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Residential · NIPSCO Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 708000000 | USD | 20260211 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 531400000 | USD | 20250212 | Open filing evidence |
Residential · NIPSCO Operations · NIPSCO Electric Generation
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 163900000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 331800000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 167900000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 649900000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 197900000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 498600000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 156900000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 300700000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 143800000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 583900000 | USD | 20250212 | Open filing evidence |
Residential · NIPSCO Operations · NIPSCO Gas Distribution
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 114200000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 405600000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 291400000 | USD | 20250507 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 66800000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 357500000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 78600000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 290700000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 212100000 | USD | 20250507 | Open filing evidence |
Residential · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
Residential · NIPSCO Electric Generation · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 143800000 | USD | 20240508 | Open filing evidence |
Wholesale · Columbia Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 2100000 | USD | 20260211 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 1100000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1200000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 100000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1100000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 200000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1000000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 800000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1600000 | USD | 20260211 | Open filing evidence |
Wholesale · Electric Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 Restated | USD | 20260211 | Open filing evidence |
Wholesale · Gas Distribution Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 1600000 | USD | 20240221 | Open filing evidence |
Wholesale · Gen Co Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:GenCoOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 4000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 4000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Wholesale · NIPSCO Operations
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20250212 | Open filing evidence |
Wholesale · NIPSCO Operations · NIPSCO Electric Generation
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 11900000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 19500000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 7600000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 38300000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 15000000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 32400000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 11200000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 17500000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 6300000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 32000000 | USD | 20250212 | Open filing evidence |
Wholesale · NIPSCO Operations · NIPSCO Gas Distribution
Major Customers · Statement Business Segments · Statement Operating Activities Segment
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
Wholesale · Corporate And Other
Major Customers · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
Wholesale · NIPSCO Electric Generation · NIPSCO Operations
Major Customers · Statement Operating Activities Segment · Statement Business Segments
Source dimensions
srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 11200000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 17500000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 6300000 | USD | 20240508 | Open filing evidence |
Columbia Operations
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 492900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 2406300000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 584800000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 1913400000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 1328600000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 3324800000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 479700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 2311900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 592300000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1832200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 1239900000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 2628400000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 417300000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1804900000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 477300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1387600000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 910300000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2661000000 | USD | 20260211 | Open filing evidence |
Columbia Operations · Commercial
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;srt:MajorCustomersAxis=nix:CommercialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 96900000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 317300000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 220400000 | USD | 20240508 | Open filing evidence |
Columbia Operations · Industrial
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;srt:MajorCustomersAxis=nix:IndustrialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 33000000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 73100000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 40100000 | USD | 20240508 | Open filing evidence |
Columbia Operations · Offsystem
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;srt:MajorCustomersAxis=nix:OffsystemMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 12800000 | USD | 20240508 | Open filing evidence |
Columbia Operations · Residential
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;srt:MajorCustomersAxis=nix:ResidentialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 332300000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 960300000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 628000000 | USD | 20240508 | Open filing evidence |
Columbia Operations · Wholesale
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;srt:MajorCustomersAxis=nix:WholesaleMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 800000 | USD | 20240508 | Open filing evidence |
Columbia Operations · Intersegment
Statement Business Segments · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;us-gaap:SubsegmentsAxis=nix:IntersegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-09-30 | 10000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 3300000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 9600000 | USD | 20241030 | Open filing evidence |
Columbia Operations · Unaffiliated
Statement Business Segments · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember;us-gaap:SubsegmentsAxis=nix:UnaffiliatedMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-01-01 – 2026-09-30 | 2422400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 2326700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1841800000 | USD | 20250806 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 423400000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1864500000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1441100000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 953700000 | USD | 20240508 | Open filing evidence |
Electric Operations
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 1785000000 Restated | USD | 20240221 | Open filing evidence |
Electric Operations · Offsystem
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember;srt:MajorCustomersAxis=nix:OffsystemMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 0 | USD | 20240221 | Open filing evidence |
Gas Distribution Operations
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 3732700000 Restated | USD | 20240221 | Open filing evidence |
Gas Distribution Operations · Industrial
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember;srt:MajorCustomersAxis=nix:IndustrialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 226000000 | USD | 20240221 | Open filing evidence |
Gas Distribution Operations · Misc.
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember;srt:MajorCustomersAxis=nix:Misc.Member| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 48200000 | USD | 20240221 | Open filing evidence |
Gas Distribution Operations · Offsystem
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember;srt:MajorCustomersAxis=nix:OffsystemMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 60600000 | USD | 20240221 | Open filing evidence |
Gas Distribution Operations · Residential
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember;srt:MajorCustomersAxis=nix:ResidentialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 2462500000 | USD | 20240221 | Open filing evidence |
NIPSCO
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 1600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 2494100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 1698400000 | USD | 20260805 | Open filing evidence |
NIPSCO Operations
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 795700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 704700000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 993700000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 3198000000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 760500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 2324300000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 654200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1563800000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 909600000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 2654500000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 628800000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1938300000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 576800000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1309500000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 732700000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 2686800000 | USD | 20260211 | Open filing evidence |
NIPSCO Operations · NIPSCO Electric Generation
Statement Business Segments · Statement Operating Activities Segment
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 468600000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 947600000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 479000000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1829500000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 515100000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1378000000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 448800000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 863000000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 414200000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1701000000 | USD | 20250212 | Open filing evidence |
NIPSCO Operations · NIPSCO Gas Distribution
Statement Business Segments · Statement Operating Activities Segment
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-04-01 – 2025-06-30 | 185600000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 616200000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 430600000 | USD | 20250507 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 825000000 | USD | 20250212 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 113700000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 560300000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 128000000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 446500000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 318500000 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 985800000 | USD | 20250212 | Open filing evidence |
NIPSCO Operations · Intersegment
Statement Business Segments · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:SubsegmentsAxis=nix:IntersegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-09-30 | 800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 300000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 800000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 500000 | USD | 20250806 | Open filing evidence |
NIPSCO Operations · Unaffiliated
Statement Business Segments · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;us-gaap:SubsegmentsAxis=nix:UnaffiliatedMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-09-30 | 2409000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1622000000 | USD | 20250806 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 652600000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 2002200000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1349600000 | USD | 20250806 | Open filing evidence |
Corporate And Other
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-06-12 – 2025-06-12 | 2518393 | USD | 20260211 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 0 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20250507 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20260211 | Open filing evidence |
Corporate And Other · Commercial
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:MajorCustomersAxis=nix:CommercialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
Corporate And Other · Industrial
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:MajorCustomersAxis=nix:IndustrialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20240221 | Open filing evidence |
Corporate And Other · Misc.
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:MajorCustomersAxis=nix:Misc.Member| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20240221 | Open filing evidence |
Corporate And Other · Offsystem
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:MajorCustomersAxis=nix:OffsystemMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 0 | USD | 20240221 | Open filing evidence |
Corporate And Other · Residential
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:MajorCustomersAxis=nix:ResidentialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
Corporate And Other · Wholesale
Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;srt:MajorCustomersAxis=nix:WholesaleMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
Corporate And Other · Intersegment
Statement Business Segments · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;us-gaap:SubsegmentsAxis=nix:IntersegmentMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-07-01 – 2024-09-30 | 145600000 | USD | 20241030 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 424500000 | USD | 20241030 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 139000000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 278900000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 139900000 | USD | 20240508 | Open filing evidence |
Corporate And Other · Unaffiliated
Statement Business Segments · Subsegments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember;us-gaap:SubsegmentsAxis=nix:UnaffiliatedMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 12000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 14900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 1400000 | USD | 20260506 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 1200000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 3600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 1200000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 2400000 | USD | 20250806 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 1200000 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 300000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 600000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 100000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 300000 | USD | 20250806 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 200000 | USD | 20250507 | Open filing evidence |
Corporate
Statement Business Segments
Source dimensions
us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 10500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 10500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
Gen Co Operations · Corporate And Other
Statement Operating Activities Segment · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:GenCoOperationsMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 10500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 10500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
NIPSCO Electric Generation · Commercial · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 213400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 567200000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 181700000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 353800000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 172100000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 713900000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 210600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 531700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 161000000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 321100000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 160100000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 620400000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 172700000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 470000000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 154400000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 297300000 | USD | 20240807 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 578100000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · Industrial · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 178800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 493500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 159200000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 314700000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 155500000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 578300000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 156200000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 432300000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 133500000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 276100000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 142600000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 499100000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 124800000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 360400000 | USD | 20251029 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 474100000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · Misc. · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 1300000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 5900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | -500000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 4600000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 5100000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | -8900000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | -6700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | -7600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | -1700000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | -900000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | -1400000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 13700000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 2700000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 10600000 | USD | 20251029 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 21400000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · Public Authority · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;srt:MajorCustomersAxis=nix:PublicAuthorityMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 4100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 12100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 3700000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 8000000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 4300000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 9500000 | USD | 20260211 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 2200000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 8100000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 2000000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 6000000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 1900000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 4000000 | USD | 20240807 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 11500000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · Residential · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 249400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 609300000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 183100000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 359900000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 176800000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 768400000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 254600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 586400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 163900000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 331800000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 167900000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 649900000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 197900000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 498600000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 156900000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 300700000 | USD | 20240807 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 583900000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · Wholesale · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 15700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 34100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 9900000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 18400000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 8500000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 45100000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 18400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 37900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 11900000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 19500000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 7600000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 38300000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 15000000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 32400000 | USD | 20251029 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 32000000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · NIPSCO
Statement Operating Activities Segment · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-01-01 – 2026-09-30 | 1722100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 1059400000 | USD | 20260805 | Open filing evidence |
NIPSCO Electric Generation · NIPSCO Operations
Statement Operating Activities Segment · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 662700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 537100000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 522300000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 2106300000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 633100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 1580700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 468600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 947600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 479000000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 1829500000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 515100000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 1378000000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 448800000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 863000000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 414200000 | USD | 20240508 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 1701000000 | USD | 20260211 | Open filing evidence |
NIPSCO Electric Generation · NIPSCO Operations · Industrial
Statement Operating Activities Segment · Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOElectricGenerationMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;srt:MajorCustomersAxis=nix:IndustrialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 119700000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 235600000 | USD | 20240807 | Open filing evidence |
NIPSCO Gas Distribution · Commercial · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;srt:MajorCustomersAxis=nix:CommercialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 35400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 192400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 41400000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 157000000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 115600000 | USD | 20260506 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 32200000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 180800000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 45500000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 148600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 103100000 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 28600000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 134000000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 30700000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 105400000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 74700000 | USD | 20240508 | Open filing evidence |
NIPSCO Gas Distribution · Industrial · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;srt:MajorCustomersAxis=nix:IndustrialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 19900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 75000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 21000000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 55100000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 34100000 | USD | 20260506 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 19700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 73700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 22600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 54000000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 31400000 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 16400000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 56300000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 23800000 | USD | 20240508 | Open filing evidence |
NIPSCO Gas Distribution · Misc. · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;srt:MajorCustomersAxis=nix:Misc.Member;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 2600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 8700000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 3000000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 6100000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 3100000 | USD | 20260506 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 2600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 10600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 3300000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 8000000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 4700000 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 1900000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 12500000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 2600000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 10500000 | USD | 20240807 | Open filing evidence |
NIPSCO Gas Distribution · Offsystem · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;srt:MajorCustomersAxis=nix:OffsystemMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 0 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 0 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
NIPSCO Gas Distribution · Residential · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;srt:MajorCustomersAxis=nix:ResidentialMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 75100000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 495900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 102200000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 420800000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 318600000 | USD | 20260506 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 72900000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 478500000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 114200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 405600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 291400000 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 66800000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 357500000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 78600000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 290700000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 212100000 | USD | 20240508 | Open filing evidence |
NIPSCO Gas Distribution · Wholesale · NIPSCO Operations
Statement Operating Activities Segment · Major Customers · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;srt:MajorCustomersAxis=nix:WholesaleMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-03-31 | 0 | USD | 20260506 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 0 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 0 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 0 | USD | 20240508 | Open filing evidence |
NIPSCO Gas Distribution · NIPSCO Operations
Statement Operating Activities Segment · Statement Business Segments
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-07-01 – 2026-09-30 | 133000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-01-01 – 2026-09-30 | 772000000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2026-04-01 – 2026-06-30 | 167600000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 639000000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-03-31 | 471400000 | USD | 20260506 | Open filing evidence |
| 2025-01-01 – 2025-12-31 | 1091700000 | USD | 20260211 | Open filing evidence |
| 2025-07-01 – 2025-09-30 | 127400000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-01-01 – 2025-09-30 | 743600000 | USD | 2026-10-28 · 10:38:13.000Z | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 185600000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 616200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-03-31 | 430600000 | USD | 20260506 | Open filing evidence |
| 2024-01-01 – 2024-12-31 | 825000000 | USD | 20260211 | Open filing evidence |
| 2024-07-01 – 2024-09-30 | 113700000 | USD | 20251029 | Open filing evidence |
| 2024-01-01 – 2024-09-30 | 560300000 | USD | 20251029 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 128000000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 446500000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 318500000 | USD | 20240508 | Open filing evidence |
| 2023-01-01 – 2023-12-31 | 985800000 | USD | 20260211 | Open filing evidence |
NIPSCO Gas Distribution · NIPSCO Operations · Industrial
Statement Operating Activities Segment · Statement Business Segments · Major Customers
Source dimensions
us-gaap:StatementOperatingActivitiesSegmentAxis=nix:NIPSCOGasDistributionMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember;srt:MajorCustomersAxis=nix:IndustrialMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2024-04-01 – 2024-06-30 | 16100000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 39900000 | USD | 20240807 | Open filing evidence |
Intersegment · Columbia Operations
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:IntersegmentMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-06-30 | 6700000 | USD | 20260805 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 3100000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 6300000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 3200000 | USD | 20240508 | Open filing evidence |
Intersegment · Electric Operations
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:IntersegmentMember;us-gaap:StatementBusinessSegmentsAxis=nix:ElectricOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 800000 | USD | 20240221 | Open filing evidence |
Intersegment · Gas Distribution Operations
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:IntersegmentMember;us-gaap:StatementBusinessSegmentsAxis=nix:GasDistributionOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 12300000 | USD | 20240221 | Open filing evidence |
Intersegment · NIPSCO Operations
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:IntersegmentMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-06-30 | 500000 | USD | 20260805 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 200000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 500000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 300000 | USD | 20240508 | Open filing evidence |
Intersegment · Corporate And Other
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:IntersegmentMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2023-01-01 – 2023-12-31 | 503800000 | USD | 20240221 | Open filing evidence |
Unaffiliated · Columbia Operations
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:UnaffiliatedMember;us-gaap:StatementBusinessSegmentsAxis=nix:ColumbiaOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-01-01 – 2026-06-30 | 1920200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 1841800000 | USD | 20260805 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 487400000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1441100000 | USD | 20240807 | Open filing evidence |
Unaffiliated · NIPSCO Operations
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:UnaffiliatedMember;us-gaap:StatementBusinessSegmentsAxis=nix:NIPSCOOperationsMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2025-01-01 – 2025-06-30 | 1622000000 | USD | 20260805 | Open filing evidence |
| 2024-04-01 – 2024-06-30 | 597200000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-06-30 | 1349600000 | USD | 20240807 | Open filing evidence |
| 2024-01-01 – 2024-03-31 | 752400000 | USD | 20240508 | Open filing evidence |
Unaffiliated · Corporate And Other
Subsegments · Statement Business Segments
Source dimensions
us-gaap:SubsegmentsAxis=nix:UnaffiliatedMember;us-gaap:StatementBusinessSegmentsAxis=us-gaap:CorporateAndOtherMember| Period | Value | Unit | Filed | Evidence |
|---|---|---|---|---|
| 2026-04-01 – 2026-06-30 | 1500000 | USD | 20260805 | Open filing evidence |
| 2026-01-01 – 2026-06-30 | 2900000 | USD | 20260805 | Open filing evidence |
| 2025-04-01 – 2025-06-30 | 1200000 | USD | 20260805 | Open filing evidence |
| 2025-01-01 – 2025-06-30 | 2400000 | USD | 20260805 | Open filing evidence |