Comprehensive Income (Loss) (Schedule Of Components Of Comprehensive Income (Loss)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Comprehensive Income (Loss) [Abstract]
Foreign currency translation adjustments, Pre-Tax	$ 162	$ 173
Foreign currency translation adjustments, Tax Expense	0	2
Foreign currency translation adjustments, Net of Tax	162	171
Unrealized investment gains (losses), Pre-Tax	1	4
Unrealized investment gains (losses), Tax Expense	(1)	1
Unrealized investment gains (losses), Net of Tax	(2)	(3)
Pension/post retirement plan: [Abstract]
Prior Service cost, Pre-Tax	(8)	(8)
Prior Service cost, Tax Expense	(5)	(2)
Prior Service cost, Net of Tax	(3)	(6)
Net actuarial loss, Pre-Tax	66	55
Net actuarial loss, Tax Expense	42	12
Net actuarial loss, Net of Tax	24	43
Subtotal, Pre-Tax	58	47
Subtotal, Tax Expense	37	10
Subtotal, Net of Tax	21	37
Foreign currency translation adjustment, Pre-Tax	(44)	(111)
Foreign currency translation adjustment, Tax Expense	(28)	(23)
Foreign currency translation adjustment, Net of Tax	(16)	(88)
Pension/retiree plans, Pre-Tax	14	(64)
Pension/retiree plans, Tax Expense	(9)	13
Pension/retiree plans, Net of Tax	5	(51)
Other comprehensive income, before tax	175	105
Other Comprehensive Income (Loss), Tax	10	(12)
Other comprehensive income, net of tax	$ 165	$ 117