Pension and Other Postretirement Employee Benefit Plans - Plan Assets Measured At Fair Value (Details 9) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Pension Plans [Member]
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Unfunded Commitments To Purchase Limited Partnership Investments For The Plan	$ 1,400,000,000	$ 1,200,000,000
Defined Benefit Plan, Excluded Amount of U.S. Receivables for Investments Sold and Dividends and Interest Receivables	137,000,000	50,000,000
Defined Benefit Plan, Excluded Amount of Non-U.S. Receivables for Investments Sold and Dividends and Interest Receivables	47,000,000	56,000,000
Defined Benefit Plan Excluded Amount Of Other Liabilities	4,000,000	4,000,000
Defined Benefit Pension Plans [Member] | Fair Value Plan Asset Measurement [Member]
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Fair Value Investments Valued At Net Asset Value	4,400,000,000	3,900,000,000
Defined Benefit Pension Plans [Member] | Level 1 [Member]
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Fair Value Investments Valued At Net Asset Value	400,000,000	400,000,000
Defined Benefit Pension Plans [Member] | Level 2 [Member]
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Fair Value Investments Valued At Net Asset Value	2,500,000,000	2,100,000,000
Defined Benefit Pension Plans [Member] | Level 3 [Member]
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Fair Value Investments Valued At Net Asset Value	1,500,000,000	1,400,000,000
Defined Benefit Pension Plans, U.S. [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	13,012,000,000	10,472,000,000	10,828,000,000
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Excluded Amount Of Payables For Investments Purchased	306,000,000	241,000,000
Defined Benefit Pension Plans, U.S. [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	13,189,000,000	10,670,000,000
Defined Benefit Pension Plans, U.S. [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	162,000,000	117,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		3,292,000,000
Defined Benefit Pension Plans, U.S. [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	3,933,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	708,000,000	614,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	748,000,000	657,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	479,000,000	303,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	424,000,000	332,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	192,000,000	173,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	211,000,000	162,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	18,000,000	11,000,000
Defined Benefit Pension Plans, U.S. [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,153,000,000	1,040,000,000
Defined Benefit Pension Plans, U.S. [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	2,271,000,000	1,728,000,000
Defined Benefit Pension Plans, U.S. [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,565,000,000	3,909,000,000
Defined Benefit Pension Plans, U.S. [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	2,044,000,000	1,972,000,000
Defined Benefit Pension Plans, U.S. [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,743,000,000	1,367,000,000
Defined Benefit Pension Plans, U.S. [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	467,000,000	306,000,000
Defined Benefit Pension Plans, U.S. [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	311,000,000	264,000,000
Defined Benefit Pension Plans, U.S. [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,115,000,000	546,000,000
Defined Benefit Pension Plans, U.S. [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	537,000,000	328,000,000
Defined Benefit Pension Plans, U.S. [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	137,000,000	158,000,000
Defined Benefit Pension Plans, U.S. [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	8,000,000	3,000,000
Defined Benefit Pension Plans, U.S. [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	461,000,000	589,000,000
Defined Benefit Pension Plans, U.S. [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(4,000,000)	(3,000,000)
Defined Benefit Pension Plans, U.S. [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(4,000,000)	(3,000,000)
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,514,000,000	3,751,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	162,000,000	117,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		3,008,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	3,823,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	702,000,000	607,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	744,000,000	657,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	425,000,000	301,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	424,000,000	332,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	192,000,000	173,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	211,000,000	161,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	18,000,000	11,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,107,000,000	766,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	412,000,000	401,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	107,000,000	122,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	3,000,000	1,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	7,000,000	102,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 1 [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,364,000,000	3,311,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		283,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	106,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	6,000,000	7,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,000,000	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	54,000,000	2,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	42,000,000	274,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,660,000,000	1,125,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	878,000,000	933,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	878,000,000	933,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,114,000,000	544,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	537,000,000	328,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	30,000,000	36,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	5,000,000	2,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	34,000,000	60,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(4,000,000)	(3,000,000)
Defined Benefit Pension Plans, U.S. [Member] | Level 2 [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(4,000,000)	(3,000,000)
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,311,000,000	3,608,000,000	3,278,000,000	2,368,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,311,000,000	3,608,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		1,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,000,000	1,000,000	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	1,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	4,000,000	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	199,000,000	202,000,000	194,000,000	284,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	3,687,000,000	2,976,000,000	2,696,000,000	1,750,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,166,000,000	1,039,000,000	1,160,000,000	680,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,743,000,000	1,367,000,000	1,232,000,000	874,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	467,000,000	306,000,000	304,000,000	196,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	311,000,000	264,000,000	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,000,000	2,000,000	1,000,000	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	420,000,000	427,000,000	387,000,000	334,000,000
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	0
Defined Benefit Pension Plans, U.S. [Member] | Level 3 [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	0
Foreign Postretirement Benefit Plans, Defined Benefit [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,237,000,000
Foreign Postretirement Benefit Plans, Defined Benefit [Member] | Level 1 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0
Foreign Postretirement Benefit Plans, Defined Benefit [Member] | Level 2 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,237,000,000
Foreign Postretirement Benefit Plans, Defined Benefit [Member] | Level 3 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0
Defined Benefit Pension Plans, Non-U.S. [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	3,330,000,000	2,989,000,000	2,647,000,000
Pension and OPEB plan assets and liabilities - supplemental information
Defined Benefit Plan Excluded Amount Of Payables For Investments Purchased	46,000,000	69,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	3,445,000,000	3,003,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	142,000,000	72,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		598,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	750,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	130,000,000	81,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	168,000,000	94,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	117,000,000	96,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	133,000,000	58,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	66,000,000	62,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	36,000,000	41,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	10,000,000	1,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	90,000,000	165,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	254,000,000	308,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	765,000,000	958,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		904,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	100,000,000	17,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	109,000,000	7,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	88,000,000	139,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(116,000,000)	(1,000,000)
Defined Benefit Pension Plans, Non-U.S. [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(116,000,000)	(1,000,000)
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,017,000,000	813,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	142,000,000	72,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		512,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	583,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	115,000,000	69,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	136,000,000	64,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	94,000,000	83,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	125,000,000	48,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	54,000,000	52,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	30,000,000	35,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	10,000,000	1,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	19,000,000	160,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	62,000,000	138,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	100,000,000	17,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	109,000,000	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	21,000,000	74,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(116,000,000)	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 1 [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	(116,000,000)	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	2,428,000,000	2,190,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		86,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	167,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	15,000,000	12,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	32,000,000	30,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	23,000,000	13,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	8,000,000	10,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	12,000,000	10,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	6,000,000	6,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	71,000,000	5,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	192,000,000	170,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	765,000,000	958,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		904,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	7,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	67,000,000	65,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	(1,000,000)
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 2 [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	(1,000,000)
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0	0	13,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Plan Asset Categories [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Cash and cash equivalents [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Total equity securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Capital equipment [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Consumer goods [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Banks and finance companies [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Business services [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Energy [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Materials [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Real estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Equity securities - Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Common/collective trust funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Limited Partnerships [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Limited partnerships - Hedge funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Limited partnerships - Private equity funds [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Real Estate [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Real Assets [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Corporate Debt Securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | U.S. federal, state, local and non-U.S. government debt securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets		0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Mortgage-backed securities [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Derivative receivables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Plan Asset Categories Other [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	0	0	0	13,000,000
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Total liabilities at fair value [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	0
Defined Benefit Pension Plans, Non-U.S. [Member] | Level 3 [Member] | Derivative Payables [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Liabilities	0	0
Defined Benefit Pension Plans and OPEB Plans [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,563,000,000	1,435,000,000	1,381,000,000
Defined Benefit Pension Plans and OPEB Plans [Member] | Level 3 [Member]
Pension and OPEB plan assets and liabilities measured at fair value
Fair Value of Plan Assets	1,554,000,000	1,427,000,000	1,381,000,000	1,269,000,000
Pension and OPEB plan assets and liabilities - supplemental information
Other Postretirement Benefit Plan Amount Of Funding With Corporate Owned Life Insurance Policies Classified Within Level Three Of Valuation Hierarchy	$ 1,600,000,000	$ 1,400,000,000