Assets and Liabilities Held-for-Sale - Schedule of Carrying Amounts (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS
TOTAL CURRENT ASSETS	$ 164	$ 163
Non-utility property, net accumulated depreciation	12	13
CURRENT LIABILITIES
TOTAL CURRENT LIABILITIES	77	76
Disposal Group, Held-for-sale, Not Discontinued Operations | Clean Energy Businesses
CURRENT ASSETS
Cash and temporary cash investments		1
Accrued unbilled revenue	1
Restricted cash	5
Prepayments		$ 1
Other current assets	2
TOTAL CURRENT ASSETS	10
Non-utility property, net accumulated depreciation	76
NET PLANT	76
OTHER NONCURRENT ASSETS
Intangible assets less accumulated amortization	71
Operating lease right-of-use asset	7
TOTAL OTHER NONCURRENT ASSETS	78
TOTAL ASSETS	164
CURRENT LIABILITIES
Long-term debt due within one year	2
Operating lease liabilities	2
Other current liabilities	6
TOTAL CURRENT LIABILITIES	10
NONCURRENT LIABILITIES
Asset retirement obligations	3
Operating lease liabilities	5
TOTAL NONCURRENT LIABILITIES	8
LONG-TERM DEBT	59
TOTAL LIABILITIES	$ 77