Shareowners' Equity (Changes In Accumulated Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013	Jun. 30, 2014		Jun. 30, 2013	Dec. 31, 2013
Stockholders Equity Note [Line Items]
Investment Securities Beginning Balance	$ 764		$ 744	$ 307	[1]	$ 677
Investment Securities Balance at June 30	1,040	[1]	146	1,040	[1]	146
Currency Translation Adjustment Beginning Balance	177		(43)	126	[1]	412
Currency Translation Adjustment Balance June 30	61	[1]	358	61	[1]	358
Cash Flow Hedges Beginning Balance	(189)		(620)	(257)	[1]	(722)
Cash Flow Hedges Balance June 30	(176)	[1]	(430)	(176)	[1]	(430)
Benefit Plans Beginning Balance	(8,601)		(19,745)	(9,296)	[1]	(20,597)
Benefit Plans Balance June 30	(8,083)	[1]	(18,537)	(8,083)	[1]	(18,537)
Other comprehensive income, net of tax	700		1,172	1,969		1,736
Less: Other comprehensive income (loss) attributable to noncontrolling interests	9		(29)	7		(31)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(7,158)		(18,463)	(7,158)		(18,463)	(9,120)
Securities Investment [Member]
Stockholders Equity Note [Line Items]
Other comprehensive income (OCI) before reclassifications - net of deferred taxes	302		(607)	749		(670)
Reclassification from OCI net of deferred taxes	(25)		7	(15)		138
Other comprehensive income, net of tax	277		(600)	734		(532)
Less: Other comprehensive income (loss) attributable to noncontrolling interests	1		(2)	1		(1)
Stockholders Equity Note Parenthetical
OCI before reclassification tax	211		(331)	457		(369)
Reclassification from OCI	(11)		16	(4)		113
Currency Translation Adjustment [Member]
Stockholders Equity Note [Line Items]
Other comprehensive income (OCI) before reclassifications - net of deferred taxes	(146)		485	(99)		14
Other comprehensive income, net of tax	(108)		373	(59)		(86)
Less: Other comprehensive income (loss) attributable to noncontrolling interests	8		(28)	6		(32)
Stockholders Equity Note Parenthetical
OCI before reclassification tax	45		(110)	116		(314)
Tax on Reclassification from OCI - Currency Translation Adjustment	0		112	124		78
Reclassification from OCI net of deferred taxes - Currency Translation Adjustment	38		(112)	40		(100)
Cash Flow Hedge [Member]
Stockholders Equity Note [Line Items]
Other comprehensive income (OCI) before reclassifications - net of deferred taxes	(191)		284	(92)		208
Other comprehensive income, net of tax	13		191	81		293
Less: Other comprehensive income (loss) attributable to noncontrolling interests	0		1	0		1
Stockholders Equity Note Parenthetical
OCI before reclassification tax	(31)		29	40		101
Reclassification from OCI net of deferred taxes - Cash Flow Hedge	204		(93)	173		85
Tax on Reclassification from OCI - Cash Flow Hedges	15		(18)	9		(65)
Pension Plan, Defined Benefit [Member]
Stockholders Equity Note [Line Items]
Other comprehensive income, net of tax	518		1,208	1,213		2,061
Less: Other comprehensive income (loss) attributable to noncontrolling interests	0		0	0		1
Stockholders Equity Note Parenthetical
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Net of Tax	95		100	188		198
Other Comprehensive Income (Loss), Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service (Cost) Credit, Tax	66		66	130		133
Other Comprehensive Income Net Amortization Of Net Actuarial Gain Loss	429		652	859		1,324
Other Comprehensive Income Net Amortization Of Net Actuarial Gain Loss Tax	211		335	424		674
Other Comprehensive Income Net Actuarial Gain Loss	(6)		456	166		539
Other Comprehensive Income Net Actuarial Gain Loss Tax	$ (10)		$ 249	$ 32		$ 302

[1] The sum of accumulated other comprehensive income (loss) (AOCI) attributable to the Company was $(7,158) million and $(9,120) million at June 30, 2014 and December 31, 2013, respectively.