Restructuring - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($) position	Dec. 31, 2022 USD ($)
2023 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Workforce reduction | position	589
Employee severance charges	$ 100
Reductions to restructuring reserve	24
Restructuring reserve balance	$ 76
2022 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Workforce reduction | position	1,440
Reductions to restructuring reserve	$ 117
Restructuring reserve balance	47	$ 164
2021 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring reserve balance	$ 1	$ 10