Costs Associated with Rationalization Programs - Net Rationalization Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 48	$ 46	$ 59	$ 62
Asset Write-off and Accelerated Depreciation Charges	5	0	7	2
Current Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	43	36	43	36
Current Year Plans | Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	43	35	43	35
Current Year Plans | Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	0	1	0	1
Prior Year Plans
Restructuring Cost and Reserve [Line Items]
Rationalizations	5	10	16	26
Prior Year Plans | Associate Severance and Other Related Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	6	6	10	16
Prior Year Plans | Pension Curtailment Gain
Restructuring Cost and Reserve [Line Items]
Rationalizations	(1)	(1)	(1)	(1)
Prior Year Plans | Other Exit and Non-Cancelable Lease Costs
Restructuring Cost and Reserve [Line Items]
Rationalizations	$ 0	$ 5	$ 7	$ 11