v3.25.4
Leases (Summary of Minimum Annual Rental Commitments) (Details)
$ in Millions
Dec. 31, 2025
USD ($)
Operating Leases  
2026 $ 4
2027 2
2028 2
2029 2
2030 1
2028 and thereafter 27
Total minimum lease payments 38
Less discount 16
Present value of minimum lease payments 22
Finance Leases  
2026 23
2027 23
2028 22
2029 23
2030 23
2028 and thereafter 202
Total minimum lease payments 316
Less discount 175
Present value of minimum lease payments 141
Consumers Energy Company  
Operating Leases  
2026 4
2027 2
2028 1
2029 1
2030 1
2028 and thereafter 22
Total minimum lease payments 31
Less discount 13
Present value of minimum lease payments 18
Finance Leases  
2026 20
2027 20
2028 19
2029 19
2030 19
2028 and thereafter 74
Total minimum lease payments 171
Less discount 84
Present value of minimum lease payments 87
Pipelines and PPAs  
Finance Leases  
2026 17
2027 17
2028 17
2029 17
2030 17
2028 and thereafter 2
Total minimum lease payments 87
Less discount 42
Present value of minimum lease payments 45
Pipelines and PPAs | Consumers Energy Company  
Finance Leases  
2026 17
2027 17
2028 17
2029 17
2030 17
2028 and thereafter 2
Total minimum lease payments 87
Less discount 42
Present value of minimum lease payments 45
Land and Other  
Finance Leases  
2026 6
2027 6
2028 5
2029 6
2030 6
2028 and thereafter 200
Total minimum lease payments 229
Less discount 133
Present value of minimum lease payments 96
Land and Other | Consumers Energy Company  
Finance Leases  
2026 3
2027 3
2028 2
2029 2
2030 2
2028 and thereafter 72
Total minimum lease payments 84
Less discount 42
Present value of minimum lease payments $ 42