Restructuring - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	$ 310
2019 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Total expected pre-tax restructuring charges	$ 310
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%
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Provision for inventories		$ 5