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Regulatory Matters, Commitments, Contingencies And Environmental Liabilities Table - Accrued Environmental Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Environmental Exit Cost [Line Items]
Current	$ 50	$ 46
Non-current	231	247
Total environmental liabilities	$ 281	$ 293

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

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