Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2011

Defined Benefit Plan Disclosure [Line Items]

Fair Value Of Assets And Liabilities

December 31, 2011	Level 1		Level 2		Level 3		Total
Assets:
Sigma Fund securities:
U.S. government, agency and government-sponsored enterprise obligations	$	—	$	2,944	$	—	$	2,944
Foreign exchange derivative contracts		—		1		—		1
Available-for-sale securities:
U.S. government, agency and government-sponsored enterprise obligations		—		16		—		16
Corporate bonds		—		10		—		10
Mortgage-backed securities		—		2		—		2
Common stock and equivalents		3		8		—		11
Liabilities:
Foreign exchange derivative contracts		—		5		—		5
Interest agreement derivative contracts		—		3		—		3

December 31, 2010	Level 1		Level 2		Level 3		Total
Assets:
Sigma Fund securities:
U.S. government, agency and government-sponsored enterprise obligations	$	—	$	2,291	$	—	$	2,291
Corporate bonds		—		43		15		58
Asset-backed securities		—		1		—		1
Mortgage-backed securities		—		11		—		11
Available-for-sale securities:
U.S. government, agency and government-sponsored enterprise obligations		—		17		—		17
Corporate bonds		—		11		—		11
Mortgage-backed securities		—		3		—		3
Common stock and equivalents		2		10		—		12
Foreign exchange derivative contracts*		—		5		—		5
Liabilities:
Foreign exchange derivative contracts*		—		15		—		15
Interest agreement derivative contracts		—		3		—		3

* Includes immaterial amounts related to held for sale businesses.

Changes In Fair Value Of Level 3 Assets

	2011			2010
Balance at January 1	$	15		$	19
Transfers to Level 3		21			3
Payments received for securities sold		(39	)		(11	)
Gain on Sigma Fund investments included in Other income (expense)		3			4
Balance at December 31	$	—		$	15

Pension And Postretirement Health Care Plan Assets

December 31, 2011	Level 1		Level 2		Level 3		Total
Common stock and equivalents	$	38	$	—	$	—	$	38
Commingled equity funds		—		54		—		54
U.S. government and agency obligations		—		10		—		10
Corporate bonds		—		11		—		11
Mortgage-backed bonds		—		1		—		1
Commingled bond funds		—		34		—		34
Commingled short-term investment funds		—		7		—		7
Invested cash		—		—		—		—
Fair value plan assets	$	38	$	117	$	—	$	155

December 31, 2010	Level 1		Level 2		Level 3		Total
Common stock and equivalents	$	48	$	—	$	—	$	48
Commingled equity funds		—		62		—		62
U.S. government and agency obligations		—		4		—		4
Corporate bonds		—		7		—		7
Mortgage-backed bonds		—		8		—		8
Asset-backed bonds		—		2		—		2
Commingled bond funds		—		34		—		34
Commingled short-term investment funds		—		4		—		4
Invested cash		—		1		—		1
Fair value plan assets	$	48	$	122		—	$	170

Regular Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Pension And Postretirement Health Care Plan Assets

December 31, 2011	Level 1		Level 2		Level 3		Total
Common stock and equivalents	$	1,128	$	3		—	$	1,131
Commingled equity funds		—		1,705		—		1,705
Preferred stock		9		—		—		9
U.S. government and agency obligations		—		261		—		261
Other government bonds		—		40		—		40
Corporate bonds		—		322		—		322
Mortgage-backed bonds		—		18		—		18
Commingled bond funds		—		1,018		—		1,018
Commingled short-term investment funds		—		215		—		215
Invested cash		—		12		—		12
Total investment securities	$	1,137	$	3,594	$	—	$	4,731
Accrued income receivable								11
Fair value plan assets							$	4,742

December 31, 2010	Level 1		Level 2		Level 3		Total
Common stock and equivalents	$	1,222	$	3		—	$	1,225
Commingled equity funds		—		1,597		—		1,597
Preferred stock		9		—		—		9
U.S. government and agency obligations		—		100		—		100
Other government bonds		—		5		—		5
Corporate bonds		—		185		—		185
Mortgage-backed bonds		—		197		—		197
Asset-backed bonds		—		40		—		40
Commingled bond funds		—		850		—		850
Commingled short-term investment funds		—		76		—		76
Invested cash		—		16		—		16
Total investment securities	$	1,231	$	3,069	$	—	$	4,300
Accrued income receivable								8
Fair value plan assets							$	4,308

Officers' Plan [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair Value Of Assets And Liabilities

December 31, 2011	Level 1		Level 2		Level 3		Total
Commingled short-term investment funds	$	—	$	5	$	—	$	5
Fair value plan assets	$	—	$	5	$	—	$	5

December 31, 2010	Level 1		Level 2		Level 3		Total
U.S. government and agency obligations	$	—	$	9	$	—	$	9
Corporate bonds		—		1		—		1
Mortgage-backed bonds		—		1		—		1
Commingled short-term investment funds		—		1		—		1
Fair value plan assets	$	—	$	12	$	—	$	12

Non-U.S. Plans [Member]

Defined Benefit Plan Disclosure [Line Items]

Fair Value Of Assets And Liabilities

December 31, 2011	Level 1		Level 2		Level 3		Total
Common stock and equivalents	$	312	$	—	$	—	$	312
Commingled equity funds		—		375		—		375
Corporate bonds		—		206		—		206
Government and agency obligations		—		10		—		10
Commingled bond funds		—		248		—		248
Short-term investment funds		—		2		—		2
Insurance contracts		—		—		56		56
Total investment securities	$	312	$	841	$	56	$	1,209
Cash								7
Accrued income receivable								3
Fair value plan assets							$	1,219

December 31, 2010	Level 1		Level 2		Level 3		Total
Common stock and equivalents	$	339	$	—	$	—	$	339
Commingled equity funds		—		389		—		389
Corporate bonds		—		98		—		98
Government and agency obligations		—		91		—		91
Commingled bond funds		—		236		—		236
Short-term investment funds		—		1		—		1
Insurance contracts		—		—		61		61
Total investment securities	$	339	$	815	$	61	$	1,215
Cash								(4	)
Accrued income receivable								3
Fair value plan assets							$	1,214

Changes In Fair Value Of Level 3 Assets

	2011			2010
Balance at January 1	$	61		$	65
Gain on assets held		2			1
Foreign exchange valuation adjustment		(7	)		(5	)
Balance at December 31	$	56		$	61