Other Comprehensive Income (Loss) (Schedule Of Components Of Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2016	Mar. 31, 2015
Equity [Abstract]
Foreign currency translation adjustments, Pre-Tax		$ 13	$ (426)
Foreign currency translation adjustments, Tax		0	(3)
Foreign currency translation adjustments, Net of Tax		13	(423)
Pension/post-retirement plans:
Prior services losses (gains), Pre-Tax	[1]	1	0
Prior service losses (gains), Tax	[1]	0	0
Prior Service losses (gains), Net of Tax	[1]	1	0
Net actuarial loss, Pre-Tax	[1]	41	77
Net actuarial loss, Tax	[1]	12	25
Net actuarial loss, Net of Tax	[1]	29	52
Subtotal, Pre-Tax		42	77
Subtotal, Tax		12	25
Subtotal, Net of Tax		30	52
Effect of remeasurement, Pre-tax		(1)	(4)
Effect of remeasurement, Tax		0	(1)
Effect of remeasurement, Net of Tax		(1)	(3)
Effect of settlement, Pre-tax		1	0
Effect of settlement, Tax		0	0
Effect of settlement, Net of Tax		1	0
Plan Termination, Pre-Tax		0	(6)
Plan Termination, Tax		0	(2)
Plan Termination, Net of Tax		0	(4)
Foreign currency translation adjustment, Pre-Tax		97	169
Foreign currency translation adjustment, Tax		16	34
Foreign currency translation adjustment, Net of Tax		81	135
Other, Pre-Tax		(1)	0
Other, Tax		0	0
Other, Net of Tax		(1)	0
Pension/post-retirement plans losses (gains), Pre-Tax		138	236
Pension/post-retirement plans losses (gains), Tax		28	56
Pension/post-retirement plans losses (gains), Net of Tax		110	180
Other comprehensive income (loss), before tax		151	(190)
Other comprehensive income (loss), Tax		28	53
Other comprehensive income (loss), net of tax		$ 123	$ (243)

[1] Components of net periodic pension cost are included in compensation and benefits in the Consolidated Statements of Income. Tax on prior service gains and net actuarial losses is included in income tax expense.