Costs Associated with Rationalization Programs - Net Rationalization Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 11	$ 16
Asset Write-off and Accelerated Depreciation Charges	2	3
Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	4
Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	7
Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	0	0
Current Year Plans | Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	0	0
Current Year Plans | Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	0	0
Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	11	16
Prior Year Plans | Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	4	10
Prior Year Plans | Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 7	$ 6