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Reorganization and Business Transformation (Details)	1 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Employee minimum age to qualify	55 years
Voluntary Separation Program
Restructuring Cost and Reserve [Line Items]
Number of years of service (at least)		10 years
Expense accruals		$ 27,000,000
Estimated reorganization costs and charges	$ 32,000,000	32,000,000
Cash payments for restructuring		$ 0

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