Commitments and Contingencies Environmental (Details) - Environmental Issue $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($) site	Sep. 30, 2021 USD ($)
Loss Contingencies [Line Items]
Number of alleged environmental contamination sites | site	185
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 251	$ 265
Accruals / changes in estimates	13	4
Payments	(13)	(13)
Ending balance	251	256
Current portion of ending balance	35	$ 35
Minimum
Loss Contingencies [Line Items]
Possible future costs to settle claims and associated liability	215
Maximum
Loss Contingencies [Line Items]
Possible future costs to settle claims and associated liability	$ 315