CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 1,439	$ 382	$ 3,154	$ 1,877
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax	(28)	85	(14)	66
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	39	43	88	172
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax	13	(7)	39	(33)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax	(1)	(221)	28	(216)
Other Comprehensive Income/(Loss)	23	(100)	141	(11)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	1,462	282	3,295	1,866
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	7	9	12	18
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ 1,455	$ 273	$ 3,283	$ 1,848