Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Goodwill And Other Intangible Assets [Line Items]
Other intangible assets, Gross	$ 396	$ 397
Other intangible assets, Accumulated amortization	143	135
Other intangible assets, Net	253	262
Patents, Trademarks, And Trade Names [Member]
Goodwill And Other Intangible Assets [Line Items]
Other intangible assets, Gross	231	228
Other intangible assets, Accumulated amortization	124	119
Other intangible assets, Net	107	109
Customer Lists And Other [Member]
Goodwill And Other Intangible Assets [Line Items]
Other intangible assets, Gross	165	169
Other intangible assets, Accumulated amortization	19	16
Other intangible assets, Net	$ 146	$ 153