XML 99 R152.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
LEASES - Undiscounted Cash Flows to be Received Under Tolling Arrangements Accounted for as Sales-type Leases (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Lessor, Lease, Description [Line Items]  
2020 $ 17
2021 15
2022 15
2023 14
2024 14
Thereafter 138
Total undiscounted cash flows 213
Lease receivable() 118
Difference between undiscounted cash flows and discounted cash flows 95
Mississippi Power  
Lessor, Lease, Description [Line Items]  
2020 17
2021 15
2022 15
2023 14
2024 14
Thereafter 138
Total undiscounted cash flows 213
Lease receivable() 118
Difference between undiscounted cash flows and discounted cash flows $ 95