The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Note 12: Guarantees (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012 IAE Collaboration [Member]	Jun. 30, 2012 IAE Collaboration [Member]	Dec. 31, 2011 IAE Collaboration [Member]	Dec. 31, 2011 International Aero Engines [Member]	Sep. 30, 2012 Goodrich Corporation [Member]
Notes to Condensed Consolidated Financial Statements [Abstract]
Service and product warranties and product performance guarantees - beginning of year	$ 1,468	$ 1,136
Warranties and performance guarantees issued	235	370
Settlements made	(217)	(333)
Product warranty accrual - other	(165)	315
Service and product warranties and product performance guarantees - end of period	1,321	1,488
Guarantor Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Undiscounted						$ 989	$ 156
Schedule of Equity Method Investments [Line Items]
Equity Method Investment Ownership Percentage			61.00%	61.00%	33.00%