Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	$ (2,614)
Other comprehensive income (loss) before reclassifications	(37)
Amounts reclassified from accumulated other comprehensive income	20
Other comprehensive income (loss)	(17)
Balance at March 31, 2013	(2,631)
Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization	1,640		1,618
Income before income taxes and equity earnings	93		122
Provision for income taxes	(24)		(32)
Net income	67		90
Defined Benefit Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(1,954)
Other comprehensive income (loss) before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	18
Other comprehensive income (loss)	18
Balance at March 31, 2013	(1,936)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at December 31, 2012	(648)
Other comprehensive income (loss) before reclassifications	(20)
Amounts reclassified from accumulated other comprehensive income	0
Other comprehensive income (loss)	(20)
Balance at March 31, 2013	(668)
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	(17)
Amounts reclassified from accumulated other comprehensive income	2
Other comprehensive income (loss)	(15)
Balance at March 31, 2013	(27)
Amount Reclassified from Accumulated Other Comprehensive Income[Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Net income	20
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	36	[1]
Other Compehensive Income (Loss), Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax	(14)	[1]
Income before income taxes and equity earnings	22
Provision for income taxes	(4)
Net income	18
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	3
Income before income taxes and equity earnings	3
Provision for income taxes	(1)
Net income	$ 2

[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.