Accumulated Other Comprehensive Income (Reclassification) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net sales		$ 2,326	$ 2,460	$ 6,361	$ 6,735
Cost of products sold		1,838	1,984	5,050	5,487
Income before income taxes		254	208	641	509
Provision for income taxes		(48)	(48)	(151)	(134)
Net income		206	160	490	375
Total (gains) losses on cash flow hedges				43	45
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total (gains) losses on cash flow hedges				5	13
Amortization of Defined Benefit Plan Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total (gains) losses on cash flow hedges				38	32
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net income		14	18	43	45
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total (gains) losses on cash flow hedges		(1)	9	5	13
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges [Member] | Commodities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of products sold		0	12	10	16
Income before income taxes		0	12	10	16
Provision for income taxes		0	(3)	(3)	(4)
Net income		0	9	7	12
Reclassification out of Accumulated Other Comprehensive Income [Member] | Gains and Losses on Cash Flow Hedges [Member] | Foreign Exchange [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net sales		3	0	7	(1)
Cost of products sold		(4)	0	(9)	2
Income before income taxes		(1)	0	(2)	1
Provision for income taxes		0	0	0	0
Net income		(1)	0	(2)	1
Reclassification out of Accumulated Other Comprehensive Income [Member] | Amortization of Defined Benefit Plan Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Income before income taxes		20	12	50	43
Provision for income taxes		(5)	(3)	(12)	(11)
Net income		15	9	38	32
Actuarial losses	[1]	34	26	90	81
Prior service credit	[1]	$ (14)	$ (14)	$ (40)	$ (38)

[1] These accumulated other comprehensive income components are included in the computation of net periodic pension and postretirement cost. See Note N for further details.