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Debt And Related Expenses (Schedule of Net Financing Cost Components) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
Interest based on debt outstanding	$ 370	$ 388	$ 259
Gain on early retirement of debt	0	30	0
Interest income	(38)	(2)	(12)
Other	(23)	(27)	23
Total net financing costs	$ 309	$ 329	$ 270

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Net financing costs other.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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