Leases (Life) (Details) - SCE	Dec. 31, 2021
Power Purchase Agreement | Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	2 years
Power Purchase Agreement | Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	20 years
Office Leases | Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	3 years
Office Leases | Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	72 years
Other operating leases | Minimum
Lessee, Lease, Description [Line Items]
Operating lease term	5 years
Other operating leases | Maximum
Lessee, Lease, Description [Line Items]
Operating lease term	13 years