Pension and Postretirement Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2011

Pension and Postretirement Benefit Plans

Reconciliation of the beginning and ending balances of the benefit obligation and the fair value of plan assets

	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Change in benefit obligation
Benefit obligation at beginning of year	$	12,319		$	11,391		$	4,912		$	4,685		$	1,828		$	1,579
Acquisitions	—			—			48			4			—			—
Service cost	206			201			124			105			61			55
Interest cost	626			638			261			241			92			88
Participant contributions	—			—			5			4			56			59
Foreign exchange rate changes	—			—			(84		)	16			(9		)	6
Plan amendments	8			—			(31		)	(75		)	—			69
Actuarial (gain) loss	2,022			760			318			167			228			125
Medicare Part D Reimbursement	—			—			—			—			7			13
Benefit payments	(680		)	(668		)	(221		)	(194		)	(155		)	(166		)
Settlements, curtailments, special termination benefits and other	(2		)	(3		)	—			(41		)	—			—
Benefit obligation at end of year	$	14,499		$	12,319		$	5,332		$	4,912		$	2,108		$	1,828
Change in plan assets
Fair value of plan assets at beginning of year	$	11,575		$	10,493		$	4,355		$	3,897		$	1,149		$	1,075
Acquisitions	—			—			26			4			—			—
Actual return on plan assets	972			1,463			272			360			94			119
Company contributions	237			290			280			266			65			62
Participant contributions	—			—			5			4			56			59
Foreign exchange rate changes	—			—			(74		)	18			—			—
Benefit payments	(680		)	(668		)	(221		)	(194		)	(155		)	(166		)
Settlements, curtailments, special termination benefits and other	(2		)	(3		)	—			—			—			—
Fair value of plan assets at end of year	$	12,102		$	11,575		$	4,643		$	4,355		$	1,209		$	1,149
Funded status at end of year	$	(2,397	)	$	(744	)	$	(689	)	$	(557	)	$	(899	)	$	(679	)

Amounts recognized in the Consolidated Balance Sheet and accumulated other comprehensive income

	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Amounts recognized in the Consolidated Balance Sheet as of Dec. 31,
Non-current assets	$	—		$	—		$	40		$	74		$	—		$	—
Accrued benefit cost
Current liabilities	(41		)	(30		)	(8		)	(7		)	(4		)	(4		)
Non-current liabilities	(2,356		)	(714		)	(721		)	(624		)	(895		)	(675		)
Ending balance	$	(2,397	)	$	(744	)	$	(689	)	$	(557	)	$	(899	)	$	(679	)
Amounts recognized in accumulated other comprehensive income as of Dec. 31,
Net transition obligation (asset)	$	—		$	—		$	(8	)	$	(7	)	$	—		$	—
Net actuarial loss (gain)	5,623			3,981			1,858			1,670			1,171			1,063
Prior service cost (credit)	30			33			(167		)	(144		)	(269		)	(341		)
Ending balance	$	5,653		$	4,014		$	1,683		$	1,519		$	902		$	722

Amounts relating to pension plans with accumulated benefit obligations in excess of plan assets

	Qualified and Non-qualified Pension Plans
	United States				International
(Millions)	2011		2010		2011		2010
Projected benefit obligation	$	14,499	$	443	$	2,983	$	1,676
Accumulated benefit obligation	13,804		441		2,740		1,563
Fair value of plan assets	12,102		25		2,321		1,122

Components of net periodic benefit cost and other amounts recognized in other comprehensive income

Components of net periodic benefit cost and other amounts recognized in other comprehensive income

	Qualified and Non-qualified Pension Benefits																		Postretirement
	United States									International									Benefits
(Millions)	2011			2010			2009			2011			2010			2009			2011			2010			2009
Net periodic benefit cost (benefit)
Service cost	$	206		$	201		$	183		$	124		$	105		$	98		$	61		$	55		$	51
Interest cost	626			638			619			261			241			235			92			88			97
Expected return on plan assets	(927		)	(929		)	(906		)	(289		)	(278		)	(260		)	(77		)	(83		)	(86		)
Amortization of transition (asset) obligation	—			—			—			(2		)	1			3			—			—			—
Amortization of prior service cost (benefit)	11			13			16			(14		)	(4		)	(4		)	(72		)	(94		)	(81		)
Amortization of net actuarial (gain) loss	334			221			99			116			84			42			102			85			66
Net periodic benefit cost (benefit)	$	250		$	144		$	11		$	196		$	149		$	114		$	106		$	51		$	47
Settlements, curtailments, special termination benefits and other	1			—			26			2			(22		)	25			—			—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	251		$	144		$	37		$	198		$	127		$	139		$	106		$	51		$	47
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss
Transition (asset) obligation	$	—		$	—		$	—		$	(2	)	$	(1	)	$	(2	)	$	—		$	—		$	—
Amortization of transition (asset) obligation	—			—			—			2			(1		)	(3		)	—			—			—
Prior service cost (benefit)	8			—			—			(32		)	(91		)	19			—			69			(169		)
Amortization of prior service cost (benefit)	(11		)	(13		)	(16		)	14			4			4			72			94			81
Net actuarial (gain) loss	1,976			227			585			315			104			224			212			89			36
Amortization of net actuarial (gain) loss	(334		)	(221		)	(99		)	(116		)	(84		)	(42		)	(102		)	(85		)	(66		)
Foreign currency	—			—			—			(17		)	(19		)	(101		)	(2		)	(1		)	(1		)
Total recognized in other comprehensive (income) loss	$	1,639		$	(7	)	$	470		$	164		$	(88	)	$	99		$	180		$	166		$	(119	)
Total recognized in net periodic benefit cost (benefit) and other comprehensive (income) loss	$	1,890		$	137		$	507		$	362		$	39		$	238		$	286		$	217		$	(72	)

Amounts expected to be amortized from accumulated other comprehensive income into net periodic benefit costs over next fiscal year

Amounts expected to be amortized from accumulated other comprehensive income into net periodic benefit costs over next fiscal year

	Qualified and Non-qualified Pension Benefits					Postretirement
(Millions)	United States		International			Benefits
Amortization of transition (asset) obligation	$	—	$	(2	)	$	—
Amortization of prior service cost (benefit)	6		(17		)	(72		)
Amortization of net actuarial (gain) loss	470		120			109
Total amortization expected over the next fiscal year	$	476	$	101		$	37

Weighted-average assumptions used to determine benefit obligations and net cost

Weighted-average assumptions used to determine benefit obligations

	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
	2011		2010		2009		2011		2010		2009		2011		2010		2009
Discount rate	4.15	%	5.23	%	5.77	%	4.58	%	5.04	%	5.30	%	4.04	%	5.09	%	5.62	%
Compensation rate increase	4.00	%	4.00	%	4.30	%	3.52	%	3.59	%	3.72	%	N/A		N/A		N/A

Weighted-average assumptions used to determine net cost for years ended

	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
	2011		2010		2009		2011		2010		2009		2011		2010		2009
Discount rate	5.23	%	5.77	%	6.14	%	5.04	%	5.30	%	5.53	%	5.09	%	5.62	%	6.14	%
Expected return on assets	8.50	%	8.50	%	8.50	%	6.58	%	6.90	%	6.86	%	7.38	%	7.30	%	7.24	%
Compensation rate increase	4.00	%	4.30	%	4.30	%	3.59	%	3.72	%	3.50	%	N/A		N/A		N/A

Estimated future pension and postretirement benefit payments

	Qualified and Non-qualified Pension Benefits				Postretirement		Medicare Subsidy
(Millions)	United States		International		Benefits		Receipts
2012 Benefit Payments	$	730	$	216	$	112	$	10
2013 Benefit Payments	752		219		122		—
2014 Benefit Payments	774		233		135		—
2015 Benefit Payments	796		245		137		—
2016 Benefit Payments	818		257		152		—
Following five years	4,407		1,500		771		—

United States Qualified and Non-qualified Pension Benefits

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block

Fair values of the assets held by the plans by asset category

	Fair Value Measurements Using Inputs Considered as															Fair Value at
(Millions)	Level 1					Level 2						Level 3				Dec 31,
Asset Class	2011		2010			2011			2010			2011		2010		2011			2010
Equities
U.S. equities	$	1,186	$	1,190		$	14		$	5		$	5	$	7	$	1,205		$	1,202
Non-U.S. equities	1,095		1,244			1			—			—		—		1,096			1,244
Derivatives	—		—			(3		)	—			—		—		(3		)	—
EAFE index funds	—		—			476			684			—		—		476			684
Index funds	—		—			128			253			1		—		129			253
Long/short equity	—		—			—			—			436		499		436			499
Total Equities	$	2,281	$	2,434		$	616		$	942		$	442	$	506	$	3,339		$	3,882
Fixed Income
U.S. government securities	$	776	$	562		$	869		$	473		$	—	$	—	$	1,645		$	1,035
Non-U.S. government securities	—		—			314			289			—		—		314			289
Preferred and convertible securities	4		20			5			8			—		—		9			28
U.S. corporate bonds	168		168			1,049			874			5		—		1,222			1,042
Non-U.S. corporate bonds	—		—			244			205			—		—		244			205
Asset backed securities	—		—			23			16			—		—		23			16
Collateralized mortgage obligations	—		—			137			31			—		—		137			31
Private placements	—		—			125			135			69		144		194			279
Derivative instruments	2		(2		)	200			(53		)	—		—		202			(55		)
Other	—		—			24			34			—		—		24			34
Total Fixed Income	$	950	$	748		$	2,990		$	2,012		$	74	$	144	$	4,014		$	2,904
Private Equity
Buyouts	$	—	$	—		$	—		$	—		$	618	$	613	$	618		$	613
Distressed debt	—		—			—			—			333		376		333			376
Growth equity	1		4			—			—			27		19		28			23
Mezzanine	—		—			—			—			90		93		90			93
Real estate	—		—			—			—			148		159		148			159
Secondary	—		—			—			—			181		165		181			165
Other	—		—			—			—			—		67		—			67
Venture capital	—		—			—			—			665		583		665			583
Total Private Equity	$	1	$	4		$	—		$	—		$	2,062	$	2,075	$	2,063		$	2,079
Absolute Return
Hedge funds and hedge fund of funds	$	—	$	—		$	1,235		$	1,142		$	88	$	59	$	1,323		$	1,201
Bank loan and other fixed income funds	—		—			—			—			432		564		432			564
Total Absolute Return	$	—	$	—		$	1,235		$	1,142		$	520	$	623	$	1,755		$	1,765
Commodities	$	—	$	—		$	435		$	338		$	105	$	111	$	540		$	449
Cash and Cash Equivalents	$	295	$	35		$	600		$	609		$	—	$	—	$	895		$	644
Total	$	3,527	$	3,221		$	5,876		$	5,043		$	3,203	$	3,459	$	12,606		$	11,723
Other items to reconcile to fair value of plan assets																$	(504	)	$	(148	)
Fair value of plan assets																$	12,102		$	11,575

Summary of changes in the fair values of the plans level 3 assets

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(Millions)	Equities			Fixed Income			Private Equity			Absolute Return			Commodities			Total
Beginning balance at Jan. 1, 2010	$	4		$	185		$	1,961		$	728		$	237		$	3,115
Net transfers into / (out of) level 3	49			(37		)	27			(49		)	(140		)	(150		)
Purchases, sales, issuances, and settlements, net	412			(34		)	(55		)	(201		)	—			122
Realized gain/(loss)	—			1			133			4			—			138
Change in unrealized gains/(losses) relating to instruments still held at the reporting date	41			29			9			141			14			234
Ending balance at Dec. 31, 2010	506			144			2,075			623			111			3,459
Net transfers into / (out of) level 3	—			5			—			(59		)	—			(54		)
Purchases, sales, issuances and settlements, net	(52		)	(97		)	(108		)	3			—			(254		)
Realized gain/(loss)	3			21			(50		)	5			—			(21		)
Change in unrealized gains/(losses) relating to instruments sold during the period	(8		)	(17		)	133			(36		)	—			72
Change in unrealized gains/(losses) relating to instruments still held at the reporting date	(7		)	18			12			(16		)	(6		)	1
Ending balance at Dec. 31, 2011	$	442		$	74		$	2,062		$	520		$	105		$	3,203

International Qualified and Non-qualified Pension Benefits

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block

Fair values of the assets held by the plans by asset category

	Fair Value Measurements Using Inputs Considered as
(Millions)	Level 1				Level 2				Level 3				Fair Value at Dec 31,
Asset Class	2011		2010		2011		2010		2011		2010		2011			2010
Equities
Growth equities	$	374	$	300	$	141	$	70	$	—	$	1	$	515		$	371
Value equities	401		369		98		27		—		—		499			396
Core equities	227		549		430		361		5		97		662			1,007
Total Equities	$	1,002	$	1,218	$	669	$	458	$	5	$	98	$	1,676		$	1,774
Fixed Income
Domestic government debt	$	188	$	194	$	579	$	455	$	6	$	7	$	773		$	656
Foreign government debt	93		51		647		345		2		2		742			398
Corporate debt securities	113		139		404		555		19		13		536			707
Mortgage backed debt	—		—		25		14		—		—		25			14
Other debt obligations	—		—		39		2		12		12		51			14
Total Fixed Income	$	394	$	384	$	1,694	$	1,371	$	39	$	34	$	2,127		$	1,789
Private Equity
Private equity funds	$	—	$	—	$	47	$	15	$	20	$	14	$	67		$	29
Real estate	3		—		38		3		47		56		88			59
Total Private Equity	$	3	$	—	$	85	$	18	$	67	$	70	$	155		$	88
Absolute Return
Hedge funds	$	—	$	—	$	172	$	130	$	—	$	—	$	172		$	130
Insurance	—		—		—		—		369		344		369			344
Derivatives	—		—		58		50		—		—		58			50
Other	—		—		2		3		1		—		3			3
Total Absolute Return	$	—	$	—	$	232	$	183	$	370	$	344	$	602		$	527
Cash and Cash Equivalents	$	106	$	233	$	2	$	9	$	—	$	—	$	108		$	242
Total	$	1,505	$	1,835	$	2,682	$	2,039	$	481	$	546	$	4,668		$	4,420
Other items to reconcile to fair value of plan assets													$	(25	)	$	(65	)
Fair value of plan assets													$	4,643		$	4,355

Summary of changes in the fair values of the plans level 3 assets

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(Millions)	Equities			FixedIncome			Private Equity			Absolute Return			Total
Beginning balance at January 1, 2010	$	14		$	22		$	59		$	375		$	470
Net transfers into / (out of) level 3	97			17			—			—			114
Foreign currency exchange	2			—			4			(18		)	(12		)
Purchases, sales, issuances and settlements, net	(15		)	—			7			10			2
Realized gain/(loss)	(18		)	—			(3		)	—			(21		)
Change in unrealized gains/(losses) relating to instruments still held at the reporting date	18			(5		)	3			(23		)	(7		)
Ending balance at December 31, 2010	98			34			70			344			546
Net transfers into / (out of) level 3	(93		)	—			(21		)	18			(96		)
Foreign currency exchange	—			(1		)	(1		)	(10		)	(12		)
Purchases, sales, issuances and settlements, net	—			—			17			3			20
Realized gain/(loss)	—			—			—			1			1
Change in unrealized gains/(losses) relating to instruments still held at the reporting date	—			6			2			14			22
Ending balance at December 31, 2011	$	5		$	39		$	67		$	370		$	481

Postretirement Benefits

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block

Fair values of the assets held by the plans by asset category

	Fair Value Measurements Using Inputs Considered as													Fair Value at
(Millions)	Level 1				Level 2					Level 3				Dec 31,
Asset Class	2011		2010		2011		2010			2011		2010		2011			2010
Equities
U.S. equities	$	396	$	392	$	—	$	—		$	—	$	—	$	396		$	392
Non-U.S. equities	44		48		—		—			—		—		44			48
EAFE index funds	—		—		15		21			—		—		15			21
Index funds	—		—		43		45			—		—		43			45
Long/short equity	—		—		—		—			14		16		14			16
Total Equities	$	440	$	440	$	58	$	66		$	14	$	16	$	512		$	522
Fixed Income
U.S. government securities	$	55	$	50	$	197	$	160		$	—	$	—	$	252		$	210
Non-U.S. government securities	—		—		12		10			—		—		12			10
Preferred and convertible securities	—		1		—		—			—		—		—			1
U.S. corporate bonds	6		5		62		49			—		—		68			54
Non-U.S. corporate bonds	—		—		14		11			—		—		14			11
Asset backed securities	—		—		5		3			—		—		5			3
Collateralized mortgage obligations	—		—		7		7			—		—		7			7
Private placements	—		—		9		8			2		4		11			12
Derivative instruments	—		—		7		(2		)	—		—		7			(2		)
Other	—		—		1		2			—		—		1			2
Total Fixed Income	$	61	$	56	$	314	$	248		$	2	$	4	$	377		$	308
Private Equity
Buyouts	$	—	$	—	$	—	$	—		$	56	$	57	$	56		$	57
Distressed debt	—		—		—		—			17		18		17			18
Growth equity	—		—		—		—			1		1		1			1
Mezzanine	—		—		—		—			3		3		3			3
Real estate	—		—		—		—			4		5		4			5
Secondary	—		—		—		—			6		5		6			5
Other	—		—		—		—			—		43		—			43
Venture capital	—		—		—		—			100		94		100			94
Total Private Equity	$	—	$	—	$	—	$	—		$	187	$	226	$	187		$	226
Absolute Return
Hedge funds and hedge fund of funds	$	—	$	—	$	40	$	36		$	3	$	2	$	43		$	38
Bank loan and other fixed income funds	—		—		—		—			14		18		14			18
Total Absolute Return	$	—	$	—	$	40	$	36		$	17	$	20	$	57		$	56
Commodities	$	—	$	—	$	14	$	11		$	4	$	3	$	18		$	14
Cash and Cash Equivalents	$	10	$	1	$	51	$	42		$	—	$	—	$	61		$	43
Total	$	511	$	497	$	477	$	403		$	224	$	269	$	1,212		$	1,169
Other items to reconcile to fair value of plan assets														$	(3	)	$	(20	)
Fair value of plan assets														$	1,209		$	1,149

Summary of changes in the fair values of the plans level 3 assets

The following table sets forth a summary of changes in the fair values of the postretirement plans’ level 3 assets for the years ended December 31, 2011 and 2010:

	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
(Millions)	Equities			Fixed Income			Private Equity			Absolute Return			Commodities			Total
Beginning balance at Jan. 1, 2010	$	—		$	6		$	245		$	22		$	7		$	280
Net transfers into / (out of) level 3	2			(2		)	—			(1		)	(4		)	(5		)
Purchases, sales, issuances and settlements, net	13			(1		)	(11		)	(6		)	—			(5		)
Realized gain/(loss)	—			—			16			—			—			16
Change in unrealized gains/(losses) relating to instruments still held at the reporting date	1			1			(24		)	5			—			(17		)
Ending balance at Dec. 31, 2010	16			4			226			20			3			269
Net transfers into / (out of) level 3	—			—			—			(2		)	—			(2		)
Purchases, sales, issuances and settlements, net	(1		)	(3		)	(43		)	1			—			(46		)
Realized gain/(loss)	—			1			(31		)	—			—			(30		)
Change in unrealized gains/(losses) relating to instruments sold during the period	(1		)	(1		)	20			(1		)	—			17
Change in unrealized gains/(losses) relating to instruments still held at the reporting date	—			1			15			(1		)	1			16
Ending balance at Dec. 31, 2011	$	14		$	2		$	187		$	17		$	4		$	224