Other 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, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Components Of Accumulated Other Comprehensive Income [Line Items]
Foreign currency translation adjustments, Pre-Tax	$ (85)	$ (191)	$ (345)	$ (29)
Foreign currency translation adjustments, Tax Expense	(1)	(14)	(5)	(14)
Foreign currency translation adjustments, Net of Tax	(84)	(177)	(340)	(15)
Unrealized investment gains (losses), Pre-Tax	(1)	0	(1)	(1)
Unrealized investment gains (losses), Tax Expense	0	1	0	2
Unrealized investment gains (losses), Net of Tax	(1)	(1)	(1)	(3)
Pension/post retirement plan: [Abstract]
Prior Service cost, Pre-Tax	(5)	(8)	(11)	(16)
Prior Service cost, Tax Expense	(2)	0	(4)	(5)
Prior Service cost, Net of Tax	(3)	(8)	(7)	(11)
Net actuarial loss, Pre-Tax	78	68	156	134
Net actuarial loss, Tax Expense	28	1	57	43
Net actuarial loss, Net of Tax	50	67	99	91
Subtotal, Pre-Tax	73	60	145	118
Subtotal, Tax Expense	26	1	53	38
Subtotal, Net of Tax	47	59	92	80
Foreign currency translation adjustment, Pre-Tax	(23)	60	157	16
Foreign currency translation adjustment, Tax Expense	(5)	33	36	5
Foreign currency translation adjustment, Net of Tax	(18)	27	121	11
Pension/retiree plans, Pre-Tax	50	120	302	134
Pension/retiree plans, Tax Expense	21	34	89	43
Pension/retiree plans, Net of Tax	29	86	213	91
Other comprehensive income (loss), before tax	(36)	(71)	(44)	104
Other Comprehensive Income (loss), Tax	20	21	84	31
Other comprehensive income (loss), net of tax	$ (56)	$ (92)	$ (128)	$ 73