Leases Operating Lease Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating Leases, Income Statement, Lease Revenue [Abstract]
Fixed Lease Income	$ 6	$ 8	$ 12	$ 16
Total Operating Lease Income	6	$ 8	12	$ 16
Energy Holdings [Member]
Operating Leases, Income Statement, Lease Revenue [Abstract]
Property, Plant, and Equipment, Lessor Asset under Operating Lease, after Accumulated Depreciation	$ 30		$ 30