Contingencies (Details)	3 Months Ended
	Mar. 31, 2022 USD ($) party
Loss Contingencies [Line Items]
Site Contingency, Names of Other Potentially Responsible Parties | party	100
Litigation Settlement, Expense	$ 115,000,000
Loss Contingency, Estimate of Possible Loss	1,700,000,000
Loss Contingency, Damages Sought, Value	1,200,000,000
Loss Contingency, Range of Possible Loss, Portion Not Accrued	500,000,000
Environmental Remediation Expense	6,000,000
amount authorized to levy	100,000
lower range of costs	1,900,000,000
upper range of costs	3,500,000,000
Class action damages sought	10,000,000
Estimated Litigation Liability	$ 750,000