v3.25.4
Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Property, Plant and Equipment    
Plant $ 38,058.8 $ 34,152.9
Accumulated depreciation and amortization (9,370.6) (8,699.0)
Net Property, Plant and Equipment [1] 28,688.2 25,453.9
Investments and Other Assets    
Unconsolidated affiliates 8.1 6.5
Available-for-sale debt securities (amortized cost of $145.8 and $91.9, allowance for credit losses of $0.0 and $0.1, respectively) 146.1 86.7
Other investments 118.6 85.5
Total Investments and Other Assets 272.8 178.7
Current Assets    
Cash and cash equivalents 110.1 156.6
Restricted cash 25.6 42.0
Accounts receivable 1,238.1 987.9
Allowance for credit losses (40.6) (23.7)
Accounts receivable, net 1,197.5 964.2
Gas inventory 252.0 179.6
Materials and supplies, at average cost 189.0 173.3
Electric production fuel, at average cost 8.5 36.2
Exchange gas receivable 66.0 45.7
Regulatory assets 274.2 319.9
Other Assets 149.3 138.5
Prepayments and other 105.0 24.2
Total Current Assets [1] 2,377.2 2,080.2
Other Assets    
Regulatory assets 2,225.2 2,157.4
Goodwill 1,485.9 1,485.9
Deferred charges and other 809.4 432.0
Total Other Assets 4,520.5 4,075.3
Total Assets 35,858.7 31,788.1
Stockholders' Equity    
Common stock - $0.01 par value, 750,000,000 shares authorized; 478,432,058 and 469,822,472 shares outstanding, respectively 4.8 4.7
Treasury stock (99.9) (99.9)
Additional paid-in capital 9,866.6 9,521.5
Retained deficit (315.2) (711.7)
Accumulated other comprehensive loss (6.2) (30.4)
Total NiSource Stockholders' Equity 9,450.1 8,684.2
Noncontrolling interest in consolidated subsidiaries 2,209.8 1,984.1
Total Stockholders’ Equity 11,659.9 10,668.3
Long-term debt, excluding amounts due within one year 15,457.8 12,074.5
Total Capitalization 27,117.7 22,742.8
Current Liabilities    
Current portion of long-term debt 19.7 1,281.2
Short-term borrowings 736.0 604.6
Accounts payable 1,124.5 863.1
Customer deposits and credits 283.4 268.8
Taxes accrued 228.8 173.4
Interest accrued 206.2 157.0
Asset retirement obligations 55.0 84.6
Exchange gas payable 125.4 91.8
Regulatory liabilities 260.1 150.5
Accrued compensation and employee benefits 246.8 268.2
Other accruals 171.5 170.2
Total Current Liabilities 3,457.4 4,113.4
Other Liabilities    
Deferred income taxes 2,500.1 2,281.6
Accrued liability for postretirement and postemployment benefits 153.1 207.5
Regulatory liabilities 1,513.3 1,431.2
Asset retirement obligations 781.9 698.6
Other noncurrent liabilities 335.2 313.0
Total Other Liabilities(1) 5,283.6 4,931.9
Total Capitalization and Liabilities 35,858.7 $ 31,788.1
us-gaap_VariableInterestEntityPrimaryBeneficiaryMemberGenCo    
Current Assets    
Total Current Assets 62.5  
Other Assets    
Total Assets 407.6  
Current Liabilities    
Total Current Liabilities 40.8  
Other Liabilities    
Other Assets $ 305.4  
[1]
(1)Includes $1,312.7 million and $1,323.8 million in 2025 and 2024, respectively, of net property, plant and equipment assets, $90.1 million and $65.0 million in 2025 and 2024, respectively, of current assets of consolidated VIEs that may be used only to settle obligations of the consolidated VIEs. Refer to Note 4, "Noncontrolling Interests," for additional information.
(2)Includes $305.4 million in 2025 of advanced deposits of project costs of consolidated VIEs that may be used only to settle obligations of the consolidated VIEs. Refer to Note 4, "Noncontrolling Interests," for additional information.