Employee Benefit Plans - EEGH - Plan Assumptions (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2019
Defined Benefit Plan Disclosure [Line Items]
Healthcare cost trend rate assumed for next year	6.00%	6.30%
Rate that the cost trend rate gradually declines to	5.00%	5.00%
Pension | EEGH
Defined Benefit Plan Disclosure [Line Items]
Discount rate				4.10%
Other Postretirement
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.95%	2.59%	3.24%
Expected return on plan assets	3.35%	5.42%	6.39%
Other Postretirement | EEGH
Defined Benefit Plan Disclosure [Line Items]
Discount rate				4.05%
United States | Pension
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.98%	2.60%	3.32%
Expected return on plan assets	5.39%	5.94%	6.48%
Rate of compensation increase	2.75%	2.75%	2.75%
United States | Pension | EEGH
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets		8.60%	8.65%
Rate of compensation increase		4.73%	4.55%
United States | Pension | EEGH | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.16%	4.10%
United States | Pension | EEGH | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.63%	4.42%
United States | Other Postretirement | EEGH
Defined Benefit Plan Disclosure [Line Items]
Discount rate		3.44%
Expected return on plan assets		8.50%	8.50%
Healthcare cost trend rate assumed for next year		6.50%	6.50%
Rate that the cost trend rate gradually declines to		5.00%	5.00%
United States | Other Postretirement | EEGH | Minimum
Defined Benefit Plan Disclosure [Line Items]
Discount rate			4.05%
United States | Other Postretirement | EEGH | Maximum
Defined Benefit Plan Disclosure [Line Items]
Discount rate			4.37%