Note 20: Retirement Plans (Detail) - Reconciliation of Beginning and Ending Balances of Assets Measured With Signficiant Unobservable Inputs (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Equity Securities [Member] | Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	$ 136	$ 162
Equity Securities [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	163	136
Equity Securities [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	163	136
Net Realized and Unrealized Gains/(Losses)	16	3
Net Purchases and Sales	11	(29)
Equity Securities [Member] | Major U.S. Plans [Member]
Balance	1,188	816
Equity Securities [Member] | Major Non-U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	6	6
Equity Securities [Member] | Major Non-U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	6	13
Equity Securities [Member] | Major Non-U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	13	6
Net Realized and Unrealized Gains/(Losses)		1
Net Purchases and Sales		6
Equity Securities [Member] | Major Non-U.S. Plans [Member]
Balance	332	394
Government Bonds [Member] | Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	231	292
Government Bonds [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	201	237
Government Bonds [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Net Realized and Unrealized Gains/(Losses)	27	8
Net Purchases and Sales	(63)	(63)
Government Bonds [Member] | Major Non-U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	6	208
Government Bonds [Member] | Major Non-U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	7	6
Government Bonds [Member] | Major Non-U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Net Realized and Unrealized Gains/(Losses)	1	(3)
Net Purchases and Sales		(199)
Inflation-Linked Bonds [Member] | Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	260	221
Inflation-Linked Bonds [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	104	260
Inflation-Linked Bonds [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	104	260
Net Realized and Unrealized Gains/(Losses)	21	39
Net Purchases and Sales	(177)	0
Net Transfer Into/(Out of) Level 3		0
Inflation-Linked Bonds [Member] | Major U.S. Plans [Member]
Balance	215	491
Inflation-Linked Bonds [Member] | Major Non-U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	251	65
Inflation-Linked Bonds [Member] | Major Non-U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	251	251
Inflation-Linked Bonds [Member] | Major Non-U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	251	251
Net Realized and Unrealized Gains/(Losses)	21	6
Net Purchases and Sales	13	180
Net Transfer Into/(Out of) Level 3	(34)
Inflation-Linked Bonds [Member] | Major Non-U.S. Plans [Member]
Balance	526	607
Global High Yield and Emerging Market Debt [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	201
Global High Yield and Emerging Market Debt [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	201
Net Realized and Unrealized Gains/(Losses)	24
Net Purchases and Sales	177
Global High Yield and Emerging Market Debt [Member] | Major U.S. Plans [Member]
Balance	525	132
Global High Yield and Emerging Market Debt [Member] | Major Non-U.S. Plans [Member]
Balance	229	223
Absolute Return [Member] | Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	135
Absolute Return [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance		135
Absolute Return [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance		135
Net Realized and Unrealized Gains/(Losses)	10
Net Purchases and Sales	20	135
Net Transfer Into/(Out of) Level 3	(165)
Absolute Return [Member] | Major U.S. Plans [Member]
Balance	324	345
Absolute Return [Member] | Major Non-U.S. Plans [Member]
Balance		145
Real Estate [Member] | Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	213	240
Real Estate [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	198	213
Real Estate [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	198	213
Net Realized and Unrealized Gains/(Losses)	(9)	18
Net Purchases and Sales	(6)	(45)
Net Transfer Into/(Out of) Level 3	0	0
Real Estate [Member] | Major U.S. Plans [Member]
Balance	198	213
Real Estate [Member] | Major Non-U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	55	81
Real Estate [Member] | Major Non-U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	44	55
Real Estate [Member] | Major Non-U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	44	55
Net Realized and Unrealized Gains/(Losses)	2	(12)
Net Purchases and Sales	(13)	(14)
Net Transfer Into/(Out of) Level 3	0	0
Real Estate [Member] | Major Non-U.S. Plans [Member]
Balance	49	59
Private Equity [Member] | Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	971	1,063
Private Equity [Member] | Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	1,002	971
Private Equity [Member] | Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	1,002	971
Net Realized and Unrealized Gains/(Losses)	126	139
Net Purchases and Sales	(95)	(231)
Net Transfer Into/(Out of) Level 3	0	0
Private Equity [Member] | Major U.S. Plans [Member]
Balance	1,002	971
Private Equity [Member] | Major Non-U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	312	307
Private Equity [Member] | Major Non-U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	322	312
Private Equity [Member] | Major Non-U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	322	312
Net Realized and Unrealized Gains/(Losses)	28	37
Net Purchases and Sales	(18)	(32)
Net Transfer Into/(Out of) Level 3	0	0
Private Equity [Member] | Major Non-U.S. Plans [Member]
Balance	324	314
Major U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	1,952	1,978
Major U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	1,869	1,952
Major U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	1,869	1,952
Net Realized and Unrealized Gains/(Losses)	215	207
Net Purchases and Sales	(133)	(233)
Net Transfer Into/(Out of) Level 3	(165)
Major U.S. Plans [Member]
Balance	4,848	4,763
Major Non-U.S. Plans [Member] | Beginning of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	630	667
Major Non-U.S. Plans [Member] | End of Period [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	637	630
Major Non-U.S. Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Balance	637	630
Net Realized and Unrealized Gains/(Losses)	53	28
Net Purchases and Sales	(12)	(65)
Net Transfer Into/(Out of) Level 3	(34)
Major Non-U.S. Plans [Member]
Balance	$ 2,479	$ 2,436