Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013		Jun. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012			$ (2,614)
Other comprehensive income (loss) before reclassifications			(48)
Amounts reclassified from accumulated other comprehensive income			46
Other comprehensive income (loss)			(2)
Balance at June 30, 2013	(2,616)		(2,616)
Revenue, Net	2,223	2,184	4,196		4,131
Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization	1,818	1,799	3,458		3,417
Income before income taxes and equity earnings	209	208	302		330
Provision for income taxes	(55)	(51)	(79)		(83)
Net income	155	157	222		247
Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012			(1,954)
Other comprehensive income (loss) before reclassifications			14
Amounts reclassified from accumulated other comprehensive income			34
Other comprehensive income (loss)			48
Balance at June 30, 2013	(1,906)		(1,906)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012			(648)
Other comprehensive income (loss) before reclassifications			(23)
Amounts reclassified from accumulated other comprehensive income			0
Other comprehensive income (loss)			(23)
Balance at June 30, 2013	(671)		(671)
Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012			(12)
Other comprehensive income (loss) before reclassifications			(39)
Amounts reclassified from accumulated other comprehensive income			12
Other comprehensive income (loss)			(27)
Balance at June 30, 2013	(39)		(39)
Amount Reclassified from Accumulated Other Comprehensive Income[Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net income			46
Amount Reclassified from Accumulated Other Comprehensive Income[Member] | Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Other Compehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Gain (Loss), before Tax			69	[1]
Other Compehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax			(26)	[1]
Income before income taxes and equity earnings			43
Provision for income taxes			(9)
Net income			34
Amount Reclassified from Accumulated Other Comprehensive Income[Member] | Commodity Contracts [Member] | Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization			18
Income before income taxes and equity earnings			18
Provision for income taxes			(5)
Net income			13
Amount Reclassified from Accumulated Other Comprehensive Income[Member] | Foreign Exchange Contracts [Member] | Gains and Losses on Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Revenue, Net			1
Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization			(2)
Income before income taxes and equity earnings			(1)
Provision for income taxes			0
Net income			$ (1)

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