Comprehensive Income (Loss) (Schedule Of Components Of Comprehensive Income (Loss)) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Comprehensive Income (Loss) [Abstract]
Foreign currency translation adjustments, Pre-Tax	$ (191)	$ 64	$ (29)	$ 237
Foreign currency translation adjustments, Tax Expense	(14)	0	(14)	2
Foreign currency translation adjustments, Net of Tax	(177)	64	(15)	235
Unrealized investment gains (losses), Pre-Tax	0	(1)	(1)	(5)
Unrealized investment gains (losses), Tax Expense	1	0	2	(1)
Unrealized investment gains (losses), Net of Tax	(1)	(1)	(3)	(4)
Pension/post retirement plan: [Abstract]
Prior Service cost, Pre-Tax	(8)	(8)	(16)	(16)
Prior Service cost, Tax Expense	0	(3)	(5)	(5)
Prior Service cost, Net of Tax	(8)	(5)	(11)	(11)
Net actuarial loss, Pre-Tax	68	54	134	109
Net actuarial loss, Tax Expense	1	22	43	34
Net actuarial loss, Net of Tax	67	32	91	75
Subtotal, Pre-Tax	60	46	118	93
Subtotal, Tax Expense	1	19	38	29
Subtotal, Net of Tax	59	27	80	64
Foreign currency translation adjustment, Pre-Tax	60	12	16	(99)
Foreign currency translation adjustment, Tax Expense	33	(3)	5	(26)
Foreign currency translation adjustment, Net of Tax	27	15	11	(73)
Pension/retiree plans, Pre-Tax	120	58	134	(6)
Pension/retiree plans, Tax Expense	34	16	43	3
Pension/retiree plans, Net of Tax	86	42	91	(9)
Other comprehensive income, before tax	(71)	121	104	226
Other Comprehensive Income (Loss), Tax	21	16	31	4
Other comprehensive income, net of tax	$ (92)	$ 105	$ 73	$ 222