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Consolidated Condensed Statements of Comprehensive Income (Unaudited) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Consolidated Condensed Statements of Comprehensive Income [Abstract]    
Net income $ 3 $ 121
Other comprehensive income:    
Net foreign currency translation adjustment 30 119
Net change in postretirement benefit plans, net of tax benefit of $0 and $11, respectively 12 20
Net change in unrealized gains on investment securities, net of tax expense of $3 0 (6)
Other comprehensive income 42 133
Comprehensive income 45 254
Net change in postretirement benefit plans, net of tax:    
Amortization of prior service costs, net of tax benefit $ 0 0 1
Amortization of net actuarial loss, net of tax benefit of $0 and $11, respectively 3 19
Unrealized change in net actuarial loss, net of tax expense of $0 9 0
Net change in postretirement benefit plans, net of tax 12 20
Net change in unrealized gains on investment securities, net of tax:    
Unrealized losses arising during period, net of tax benefit of $0 0 (1)
Gains realized during the period, net of tax expense of $3 0 (5)
Net change in unrealized gains on investment securities, net of tax $ 0 $ (6)