Consolidated Statement of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Profit of consolidated and affiliated companies	$ 882	$ 1,611
Other Comprehensive Income (Loss), Net of Tax:
Foreign currency translation, net of tax (provision)/benefit of: Three months ended: 2013-$(21), 2012-$17	(366)	181
Pension and other postretirement benefits:
Current year actuarial gain (loss), net of tax (provision)/benefit of: Three months ended: 2013-$(10), 2012-$(6)	15	10
Amortization of actuarial (gain) loss, net of tax (provision)/benefit of: Three months ended: 2013-$(67), 2012-$(60)	129	113
Current year prior service credit (cost), net of tax (provision)/benefit of: Three months ended: 2013-$0, 2012- $2	0	(3)
Amortization of prior service (credit) cost, net of tax (provision)/benefit of: Three months ended: 2013-$5, 2012-$4	(9)	(8)
Amortization of transition (asset) obligation, net of tax (provision)/benefit of: Three months ended: 2013-$0, 2012-$0	1	1
Derivative financial instruments:
Gains (losses) deferred, net of tax (provision)/benefit of: Three months ended: 2013-$18, 2012-$16	(31)	(26)
(Gains) losses reclassified to earnings, net of tax (provision)/benefit of: Three months ended: 2013-$(7), 2012-$1	11	(2)
Available-for-sale securities:
Gains (losses) deferred, net of tax (provision)/benefit of: Three months ended: 2013-$(8), 2012-$(9)	15	21
(Gains) losses reclassified to earnings, net of tax (provision)/benefit of: Three months ended: 2013 - $0, 2012 - $0	(1)	(2)
Total other comprehensive income (loss), net of tax	(236)	285
Comprehensive Income	646	1,896
Less: comprehensive income attributable to the noncontrolling interests	(2)	(15)
Comprehensive income attributable to stockholders	$ 644	$ 1,881