Restructuring Plan - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charge	$ 0	$ 9	$ 4	$ 33
Severance and other employee related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	0	0	1	5
Severance and other employee related charges [Member] | Employee-related costs in accordance with ASC 420
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges		2		4
Severance and other employee related charges [Member] | Severance charge under ASC 712 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	0	2		1
Asset Related Charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	0		6
Other exit costs
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	0	2	2	4
Cost of Products [Member] | inventory related charges [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and other asset-related charges	$ 0	$ 7	$ 7	$ 24