Consolidated Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Profit (loss) of consolidated and affiliated companies	$ 6,148	$ 759	$ (59)
Other comprehensive income (loss), Net of Tax:
Foreign currency translation, net of tax (provision)/benefit of: 2018-$(24); 2017 - $96; 2016 - $(30)	(396)	765	(17)
Pension and other postretirement benefits:
Current year prior service credit (cost), net of tax (provision)/benefit of: 2018 - $(6); 2017 - $(26); 2016 - $(69)	(6)	48	118
Amortization of prior service (credit) cost, net of tax (provision)/benefit of: 2018 -$8; 2017 - $9; 2016 - $21	(28)	(16)	(35)
Derivative financial instruments:
Gains (losses) deferred, net of tax (provision)/benefit of: 2018 - $(19); 2017 - $2; 2016 - $33	61	(3)	(62)
(Gains) losses reclassified to earnings, net of tax (provision)/benefit of: 2018 - $31; 2017 - $(44); 2016 - $2	(100)	77	(3)
Available-for-sale securities:
Gains (losses) deferred, net of tax (provision)/benefit of: 2017 - $(23); 2016 - $(12); 2015 - $9	(12)	41	26
(Gains) losses reclassified to earnings, net of tax (provision)/benefit of: 2018 - $0; 2017 - $35; 2016 - $15	0	(65)	(31)
Total other comprehensive income (loss), net of tax	(481)	847	(4)
Comprehensive income	5,667	1,606	(63)
Less: comprehensive income attributable to the noncontrolling interests	1	5	8
Comprehensive income attributable to shareholders	$ 5,666	$ 1,601	$ (71)