Regulatory Matters, Commitments, Contingencies And Environmental Liabilities Table - Accrued Environmental Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Environmental Exit Cost [Line Items]
Current	$ 49	$ 54
Non-current	227	228
Total environmental liabilities	$ 276	$ 282

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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