Pension, Retiree Medical And Savings Plans (Tables)

12 Months Ended

Dec. 31, 2011

Defined Benefit Plan Disclosure [Line Items]

Selected Financial Information For Pension And Retiree Medical Plans

	Pension												Retiree Medical
	U.S.						International
	2011			2010			2011			2010			2011			2010
Change in projected benefit liability
Liability at beginning of year	$	9,851		$	6,606		$	2,142		$	1,709		$	1,770		$	1,359
Acquisitions/(divestitures)		11			2,161			(63	)		90			—			396
Service cost		350			299			95			81			51			54
Interest cost		547			506			117			106			88			93
Plan amendments		21			28			(16	)		—			3			(132	)
Participant contributions		—			—			3			3			—			—
Experience loss/(gain)		1,484			583			224			213			(239	)		95
Benefit payments		(414	)		(375	)		(69	)		(69	)		(110	)		(100	)
Settlement/curtailment gain		(20	)		(2	)		(15	)		(3	)		—			—
Special termination benefits		71			45			1			3			1			3
Foreign currency adjustment		—			—			(41	)		(18	)		(1	)		2
Other		—			—			3			27			—			—
Liability at end of year	$	11,901		$	9,851		$	2,381		$	2,142		$	1,563		$	1,770
Change in fair value of plan assets
Fair value at beginning of year	$	8,870		$	5,420		$	1,896		$	1,561		$	190		$	13
Acquisitions/(divestitures)		11			1,633			(1	)		52			—			—
Actual return on plan assets		542			943			79			164			—			7
Employer contributions/funding		63			1,249			176			215			110			270
Participant contributions		—			—			3			3			—			—
Benefit payments		(414	)		(375	)		(69	)		(69	)		(110	)		(100	)
Settlement		—			—			(30	)		(2	)		—			—
Foreign currency adjustment		—			—			(23	)		(28	)		—			—
Fair value at end of year	$	9,072		$	8,870		$	2,031		$	1,896		$	190		$	190
Funded status	$	(2,829	)	$	(981	)	$	(350	)	$	(246	)	$	(1,373	)	$	(1,580	)
Amounts recognized
Other assets	$	—		$	47		$	55		$	66		$	—		$	—
Other current liabilities		(91	)		(54	)		(1	)		(10	)		(124	)		(145	)
Other liabilities		(2,738	)		(974	)		(404	)		(302	)		(1,249	)		(1,435	)
Net amount recognized	$	(2,829	)	$	(981	)	$	(350	)	$	(246	)	$	(1,373	)	$	(1,580	)
Amounts included in accumulated other comprehensive loss (pre-tax)
Net loss	$	4,217		$	2,726		$	977		$	767		$	32		$	270
Prior service cost/(credit)		122			117			(2	)		17			(118	)		(150	)
Total	$	4,339		$	2,843		$	975		$	784		$	(86	)	$	120
Components of the increase/(decrease) in net loss
Change in discount rate	$	1,710		$	556		$	302		$	213		$	115		$	101
Employee-related assumption changes		(140	)		4			(51	)		(4	)		(125	)		8
Liability-related experience different from assumptions		(85	)		43			(27	)		5			(210	)		(22	)
Actual asset return different from expected return		162			(300	)		57			(41	)		14			(6	)
Amortization of losses		(147	)		(119	)		(55	)		(24	)		(12	)		(9	)
Other, including foreign currency adjustments		(9	)		(21	)		(16	)		(7	)		(20	)		8
Total	$	1,491		$	163		$	210		$	142		$	(238	)	$	80
Liability at end of year for service to date	$	11,205		$	9,163		$	1,921		$	1,743

Estimated Amounts To Be Amortized From Accumulated Other Comprehensive Loss Into Benefit Expense In 2012 For Pension And Retiree Medical Plans

	Pension				Retiree Medical
	U.S.		International
Net loss	$	259	$	52	$	—
Prior service cost/(credit)		17		1		(26	)
Total	$	276	$	53	$	(26	)

Weighted-Average Assumptions Used To Determine Projected Benefit Liability And Benefit Expense For Pension And Retiree Medical Plans

	Pension																		Retiree Medical
	U.S.									International
	2011			2010			2009			2011			2010			2009			2011			2010			2009
Weighted-average assumptions
Liability discount rate		4.6	%		5.7	%		6.1	%		4.8	%		5.5	%		5.9	%		4.4	%		5.2	%		6.1	%
Expense discount rate		5.7	%		6.0	%		6.2	%		5.5	%		6.0	%		6.3	%		5.2	%		5.8	%		6.2	%
Expected return on plan assets		7.8	%		7.8	%		7.8	%		6.7	%		7.1	%		7.1	%		7.8	%		7.8	%		—
Liability rate of salary increases		3.7	%		4.1	%		4.4	%		4.1	%		4.1	%		4.1	%
Expense rate of salary increases		4.1	%		4.4	%		4.4	%		4.1	%		4.1	%		4.2	%

Selected Information About Plans With Liability For Service To Date And Total Benefit Liability In Excess Of Plan Assets

	Pension												Retiree Medical
	U.S.						International
	2011			2010			2011			2010			2011			2010
Selected information for plans with liability for service to date in excess of plan assets
Liability for service to date	$	(11,205	)	$	(525	)	$	(471	)	$	(610	)
Fair value of plan assets	$	9,072		$	—		$	344		$	474
Selected information for plans with projected benefit liability in excess of plan assets
Benefit liability	$	(11,901	)	$	(5,806	)	$	(2,191	)	$	(1,949	)	$	(1,563	)	$	(1,770	)
Fair value of plan assets	$	9,072		$	4,778		$	1,786		$	1,638		$	190		$	190

Schedule Of Future Benefit Payments And Funding

	2012		2013		2014		2015		2016		2017-21
Pension	$	560	$	560	$	560	$	600	$	645	$	4,050
Retiree medical(a)	$	135	$	135	$	140	$	145	$	145	$	730

(a) Expected future benefit payments for our retiree medical plans do not reflect any estimated subsidies expected to be received under the 2003 Medicare Act. Subsidies are expected to be approximately $13 million for each of the years from 2012 through 2016 and approximately $100 million in total for 2017 through 2021.

Categorized Plan Assets Measured At Fair Value

	2011								2010
	Total		Level 1		Level 2		Level 3		Total
U.S. plan assets*
Equity securities:
U.S. common stock(a)	$	514	$	514	$	—	$	—	$	304
U.S. commingled funds(b)		3,003		—		3,003		—		3,426
International common stock(a)		1,089		1,089		—		—		834
International commingled fund(c)		776		—		776		—		992
Preferred stock(d)		19		—		19		—		4
Fixed income securities:
Government securities(d)		1,032		—		1,032		—		950
Corporate bonds(d) (e)		2,653		—		2,653		—		2,374
Mortgage-backed securities(d)		24		—		24		—		20
Other:
Contracts with insurance companies(f)		24		—		—		24		28
Cash and cash equivalents		78		78		—		—		81
Sub-total U.S. plan assets		9,212	$	1,681	$	7,507	$	24		9,013
Dividends and interest receivable		50								47
Total U.S. plan assets	$	9,262							$	9,060
International plan assets
Equity securities:
U.S. commingled funds(b)	$	246	$	—	$	246	$	—	$	193
International commingled funds(c)		729		—		729		—		779
Fixed income securities:
Government securities(d)		171		—		171		—		184
Corporate bonds(d)		196		—		196		—		152
Fixed income commingled funds(g)		530		—		530		—		393
Other:
Contracts with insurance companies(f)		30		—		—		30		28
Currency commingled funds(h)		52		—		52		—		42
Other commingled fund(i)		56		—		56		—		—
Cash and cash equivalents		16		16		—		—		120
Sub-total international plan assets		2,026	$	16	$	1,980	$	30		1,891
Dividends and interest receivable		5								5
Total international plan assets	$	2,031							$	1,896

(a) Based on quoted market prices in active markets.

(b) Based on the fair value of the investments owned by these funds that track various U.S. large, mid-cap and small company indices. Includes one large-cap fund that represents 30% and 32%, respectively, of total U.S. plan assets for 2011 and 2010.

(c) Based on the fair value of the investments owned by these funds that track various non-U.S. equity indices.

(d) Based on quoted bid prices for comparable securities in the marketplace and broker/dealer quotes that are not observable.

(e) Corporate bonds of U.S.-based companies represent 24% and 22%, respectively, of total U.S. plan assets for 2011 and 2010.

(f) Based on the fair value of the contracts as determined by the insurance companies using inputs that are not observable.

(g) Based on the fair value of the investments owned by these funds that track various government and corporate bond indices.

(h) Based on the fair value of the investments owned by these funds. Includes managed hedge funds that invest primarily in derivatives to reduce currency exposure.

(i) Based on the fair value of the investments owned by this fund that tracks various indices.

* 2011 and 2010 amounts include $190 million of retiree medical plan assets that are restricted for purposes of providing health benefits for U.S. retirees and their beneficiaries.

Effects Of 1-Percentage-Point Change In The Assumed Health Care Trend Rate

	1% Increase		1% Decrease
2011 service and interest cost components	$	4	$	(4	)
2011 benefit liability	$	39	$	(29	)

Components Of Benefit Expense [Member]

Defined Benefit Plan Disclosure [Line Items]

Selected Financial Information For Pension And Retiree Medical Plans

	Pension																		Retiree Medical
	U.S.									International
	2011			2010			2009			2011			2010			2009			2011			2010			2009
Components of benefit expense
Service cost	$	350		$	299		$	238		$	95		$	81		$	54		$	51		$	54		$	44
Interest cost		547			506			373			117			106			82			88			93			82
Expected return on plan assets		(704	)		(643	)		(462	)		(136	)		(123	)		(105	)		(14	)		(1	)		—
Amortization of prior service cost/(credit)		14			12			12			2			2			2			(28	)		(22	)		(17	)
Amortization of net loss		145			119			110			40			24			9			12			9			11
		352			293			271			118			90			42			109			133			120
Settlement/curtailment (gain)/loss		(8	)		(2	)		(13	)		30			1			3			—			(62	)		—
Special termination benefits		71			45			—			1			3			—			1			3			—
Total	$	415		$	336		$	258		$	149		$	94		$	45		$	110		$	74		$	120