Restructuring - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2021 USD ($)
Restructuring Cost and Reserve [Line Items]
Total Charges Expected as of June 30, 2021	$ 300
2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Total Charges Expected as of June 30, 2021	$ 300
Pre-tax charge expected to be paid in cash	70.00%
Severance and employee related costs | 2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Percentage of aggregate restructuring charge	60.00%
Facilities and related costs | 2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Percentage of aggregate restructuring charge	20.00%
Other costs | 2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Percentage of aggregate restructuring charge	20.00%