Restructuring - Accrued Liability for Restructuring Expense (Details) - Organizational restructuring $ in Millions	9 Months Ended
	Sep. 30, 2022 USD ($)
Restructuring Reserve [Roll Forward]
Accrued liability, beginning balance	$ 52
Provision	22
Payments	(47)
Accrued liability, ending balance	27
Severance Benefits
Restructuring Reserve [Roll Forward]
Accrued liability, beginning balance	30
Provision	0
Payments	(8)
Accrued liability, ending balance	22
Transition Costs
Restructuring Reserve [Roll Forward]
Accrued liability, beginning balance	22
Provision	22
Payments	(39)
Accrued liability, ending balance	$ 5