LONG-TERM DEBT, NET- Long-Term Debt by Types and Interest Rates (Includes Current Portion) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Mar. 31, 2022
Debt Instrument [Line Items]
Other	$ 1	$ 1
Total principal long-term debt	5,093	5,125
Add: business combination fair value adjustment	4	8
Less: unamortized discounts	(37)	(26)
Less: unamortized debt expense	(7)	(8)
Total	5,053	5,099
Portion due within one year	$ 978	$ 0
7.125 percent due in July 2023
Debt Instrument [Line Items]
Debt, interest rate	7.125%	7.125%	7.125%
Debt, maturity year	2023	2023
Senior Notes	$ 118	$ 191
5.207% installment note due 2023
Debt Instrument [Line Items]
Debt, interest rate	5.207%	5.207%
Debt, maturity year	2023	2023
Senior Notes	$ 860	$ 860
8.50% debentures due 2025
Debt Instrument [Line Items]
Debt, interest rate	8.50%	8.50%	8.50%
Debt, maturity year	2025	2025
Senior Notes	$ 139	$ 300
7.95% debentures due 2025
Debt Instrument [Line Items]
Debt, interest rate	7.95%	7.95%	7.95%
Debt, maturity year	2025	2025
Senior Notes	$ 71	$ 136
7.70% debentures due 2026
Debt Instrument [Line Items]
Debt, interest rate	7.70%	7.70%
Debt, maturity year	2026	2026
Senior Notes	$ 150	$ 150
7.35% debentures due 2026
Debt Instrument [Line Items]
Debt, interest rate	7.35%	7.35%
Debt, maturity year	2026	2026
Senior Notes	$ 62	$ 62
7.85 percent due in July 2026
Debt Instrument [Line Items]
Debt, interest rate	7.85%	7.85%	7.85%
Debt, maturity year	2026	2026
Senior Notes	$ 60	$ 100
6.95% debentures due 2027
Debt Instrument [Line Items]
Debt, interest rate	6.95%	6.95%
Debt, maturity year	2027	2027
Senior Notes	$ 300	$ 300
4.00% debentures due 2029
Debt Instrument [Line Items]
Debt, interest rate	4.00%	4.00%
Debt, maturity year	2029	2029
Senior Notes	$ 750	$ 750
4.00% notes due 2030
Debt Instrument [Line Items]
Debt, interest rate	4.00%	4.00%
Debt, maturity year	2030	2030
Senior Notes	$ 750	$ 750
7.375 percent due in March 2032
Debt Instrument [Line Items]
Debt, interest rate	7.375%	7.375%	7.375%
Debt, maturity year	2032	2032
Senior Notes	$ 657	$ 1,250
6.875% debentures due 2033
Debt Instrument [Line Items]
Debt, interest rate	6.875%	6.875%
Debt, maturity year	2033	2033
Senior Notes	$ 275	$ 275
3.375% debentures due 2033
Debt Instrument [Line Items]
Debt, interest rate	3.375%	3.375%
Debt, maturity year	2033	2033
Senior Notes	$ 450	$ 0
4.00% debentures due 2052
Debt Instrument [Line Items]
Debt, interest rate	4.00%	4.00%
Debt, maturity year	2052	2052
Senior Notes	$ 450	$ 0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt discount (premium).

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt Instrument Maturity Year.

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