Derivative and Other Financial Instruments (Accumulated Other Comprehensive Income ("AOCI") and Earnings from Changes in Fair Value Related to Derivative Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	$ (26)		$ (58)		$ (39)		$ (76)
Amount of gain/(loss) reclassified from AOCI into earnings	(13)		(21)		(25)		(39)
Provision for income taxes	67		(111)		146		(28)
Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	(2)		0		(1)		(3)
Amount of gain/(loss) reclassified from AOCI into earnings	(1)	[1]	0	[2]	0	[1]	0	[2]
Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain/(loss) recognized in AOCI (effective portion)	(24)		(58)		(38)		(73)
Amount of gain/(loss) reclassified from AOCI into earnings	(12)	[3]	(21)	[4]	(25)	[3]	(39)	[4]
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified cost of products sold	4		3		6		6
Gain (loss) recognized in net sales	(5)		(3)		(6)		(7)
Provision for income taxes	0				0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Commodity Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified cost of products sold	(16)		(28)		(34)		(51)
Cash flow hedge ineffectiveness	(2)		4		(3)		4
Provision for income taxes	$ (4)		$ (7)		$ (9)		$ (12)

[1] Within the Statement of Operations for the three months ended September 30, 2013, a gain of $4 was recognized in cost of products sold and a loss of $5 was recognized in net sales. During the nine months ended September 30, 2013 a gain of $6 was recognized in cost of products sold and a loss of $6 was recognized in net sales.

[2] Within the Statement of Operations for the three months ended September 30, 2012 , a gain of $3 was recognized in cost of products sold and a loss of $3 was recognized in net sales. During the nine months ended September 30, 2012 , a gain of $6 was recognized in cost of products sold and a loss of $7 was recognized in net sales.

[3] Within the Statement of Operations for the three months ended September 30, 2013, a net loss of $16, including a reduction of $2 for ineffectiveness, was recognized in cost of products sold and a tax benefit of $4 was recognized in income tax expense. During the nine months ended September 30, 2013 a loss of $34, including a reduction of $3 for ineffectiveness, was recognized in cost of products sold and a tax benefit of $9 was recognized in income tax expense.

[4] Within the Statement of Operations for the three months ended September 30, 2012 , a loss of $28. including ineffectiveness of $4 , was recognized in cost of products sold and a tax benefit of $7 was recognized in income tax expense. During the nine months ended September 30, 2012, a loss of $51, including ineffectiveness of $4 ,was recognized in cost of products sold and a tax benefit of $12 was recognized in income tax expense.