Other Comprehensive Income (Loss) (Schedule Of Components Of Comprehensive Income (Loss)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Comprehensive Income (Loss) [Abstract]
Foreign currency translation adjustments, Pre-Tax	$ 171	$ (349)	$ 142	$ (112)
Foreign currency translation adjustments, Tax Expense	4	(1)	(10)	1
Foreign currency translation adjustments, Net of Tax	167	(348)	152	(113)
Unrealized investment gains (losses), Pre-Tax	0	(1)	(1)	(6)
Unrealized investment gains (losses), Tax Expense	(1)	0	1	(1)
Unrealized investment gains (losses), Net of Tax	1	(1)	(2)	(5)
Pension/post retirement plan: [Abstract]
Prior Service cost, Pre-Tax	(8)	(8)	(24)	(24)
Prior Service cost, Tax Expense	(6)	(3)	(11)	(8)
Prior Service cost, Net of Tax	(2)	(5)	(13)	(16)
Net actuarial loss, Pre-Tax	68	51	202	160
Net actuarial loss, Tax Expense	52	18	95	52
Net actuarial loss, Net of Tax	16	33	107	108
Subtotal, Pre-Tax	60	43	178	136
Subtotal, Tax Expense	46	15	84	44
Subtotal, Net of Tax	14	28	94	92
Foreign currency translation adjustment, Pre-Tax	(132)	87	(116)	(12)
Foreign currency translation adjustment, Tax Expense	(60)	21	(55)	(5)
Foreign currency translation adjustment, Net of Tax	(72)	66	(61)	(7)
Pension/retiree plans, Pre-Tax	(72)	130	62	124
Pension/retiree plans, Tax Expense	(14)	36	29	39
Pension/retiree plans, Net of Tax	(58)	94	33	85
Other comprehensive income (loss), before tax	99	(220)	203	6
Other Comprehensive Income (loss), Tax	(11)	35	20	39
Other comprehensive income (loss), net of tax	$ 110	$ (255)	$ 183	$ (33)