Note 8: Goodwill And Other Intangible Assets (Detail) - Gross Carrying Amount of Accumulated Amortization By Major Intangible Asset Category (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Gross Carrying Amount	$ 289	$ 385
Accumulated Amortization	228	298
Net	61	87
Weighted-Average Amortization Period	10 years	9 years
Technology based [Member]
Gross Carrying Amount	51	146
Accumulated Amortization	47	133
Net	4	13
Weighted-Average Amortization Period	8 years	7 years
Customer Relationships [Member]
Gross Carrying Amount	222	223
Accumulated Amortization	172	157
Net	50	66
Weighted-Average Amortization Period	10 years	10 years
Other Intangible Assets [Member]
Gross Carrying Amount	16	16
Accumulated Amortization	9	8
Net	$ 7	$ 8
Weighted-Average Amortization Period	18 years	18 years