Hedges and Derivative Financial Instruments (Schedule of Effects of Derivative Instruments on Consolidated Statements of Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 13	[1]	$ (34)	[1]	$ (12)	[1]	$ (41)	[1]
Gain (Loss) Reclassified from OCI into Income (Effective Portion)	(8)	[2]	17	[2]	(19)	[2]	69	[2]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months					(8)
Foreign Exchange Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(22)	[1]	26	[1]	(30)	[1]	15	[1]
Gain (Loss) Reclassified from OCI into Income (Effective Portion)	(4)	[2]	(5)	[2]	(11)	[2]	(16)	[2]
Gain (Loss) Recognized on Derivatives not Accounted for as Hedges, Foreign Exchange Forwards / Options	(2)	[3]	(45)	[3]	(24)	[3]	(1)	[3]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	(3)	[4]	6	[4]	(4)	[4]	7	[4]
Change in Unrealized Gain (Loss) on Hedged Item in Foreign Currency Fair Value Hedge	3	[4]	(6)	[4]	4	[4]	(7)	[4]
Commodity Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	35	[1]	(60)	[1]	25	[1]	(56)	[1]
Gain (Loss) Reclassified from OCI into Income (Effective Portion)	(4)	[2]	22	[2]	(8)	[2]	85	[2]
Gain (Loss) Recognized on Derivatives not Accounted for as Hedges, Foreign Exchange Forwards / Options	0	[3]	(1)	[3]	0	[3]	(1)	[3]
Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	0	[1]	0	[1]	(7)	[1]	0	[1]
Gain (Loss) Reclassified from OCI into Income (Effective Portion)	$ 0	[2]	$ 0	[2]	$ 0	[2]	$ 0	[2]

[1] Gains and losses recognized in OCI are included within total comprehensive income

[2] Gains and losses reclassified from accumulated OCI and recognized in earnings are recorded in (a) interest and sundry income (expense), (b) cost of products sold or (c) interest expense.

[3] Mark to market gains and losses recognized in earnings are recorded in interest and sundry income (expense).

[4] Gains and losses recognized in earnings are recorded in interest and sundry income (expense).