Commitments and Contingencies Environmental (Details) - Environmental Issue $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($) site	Mar. 31, 2022 USD ($)
Loss Contingencies [Line Items]
Number of alleged environmental contamination sites \| site	185
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 247	$ 251
Accruals / changes in estimates	1	1
Payments	(4)	(4)
Ending balance	244	248
Current portion of ending balance	35	$ 35
Minimum
Loss Contingencies [Line Items]
Possible future costs to settle claims and associated liability	200
Maximum
Loss Contingencies [Line Items]
Possible future costs to settle claims and associated liability	$ 310

Amount of expense for newly incurred environmental loss contingencies and revisions to previously reported estimates

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- Definition

Administrative, Judicial and Other Mandatory Cleanup Efforts, Total Sites

+ References

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

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Amount of cash outflow to settle environmental loss contingencies.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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