Condensed Consolidated Statement of Comprehensive (Loss) Income - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement of Comprehensive Income [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (3,811)	$ 1,999	$ (3,797)	$ 3,424
Foreign currency translation adjustments	665	(437)	(780)	97
Pension and postretirement benefit plans adjustments	(2,286)	30	(2,176)	73
Change in unrealized cash flow hedging	215	37	(159)	48
Other Comprehensive Income (Loss), before Tax	(1,406)	(370)	(3,115)	218
Income tax benefit (expense) related to items of other comprehensive income (loss)	519	(4)	589	(30)
Other comprehensive income (loss), net of tax	(887)	(374)	(2,526)	188
Comprehensive income (loss)	(4,698)	1,625	(6,323)	3,612
Less: Comprehensive income attributable to noncontrolling interest	(30)	(100)	(121)	(182)
Comprehensive income (loss) attributable to common shareowners	$ (4,728)	$ 1,525	$ (6,444)	$ 3,430

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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