Restructuring Plans (Details) $ in Millions	6 Months Ended
	Jun. 30, 2015 USD ($)
Research and development
Restructuring costs
Restructuring charges	$ 2
Restructuring Plan 2014
Restructuring costs
Restructuring charges	19
Additional charges for accelerated depreciation	25
Restructuring Plan 2014 | Cost of products sold
Restructuring costs
Restructuring charges	1
Restructuring Plan 2014 | Selling, general and administrative expense
Restructuring costs
Restructuring charges	18
Restructuring Plan 2015
Restructuring costs
Restructuring charges	25
Restructuring Plan 2015 | Cost of products sold
Restructuring costs
Restructuring charges	9
Restructuring Plan 2015 | Selling, general and administrative expense
Restructuring costs
Restructuring charges	$ 14