Property, Plant And Equipment (Tables)

6 Months Ended

Jun. 30, 2019

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment, Net

($ in millions)	June 30, 2019		December 31, 2018
Property, plant and equipment	$	26,001	$	27,657
Less: Accumulated depreciation		(13,002)		(13,470)
Property, plant and equipment, net	$	12,999	$	14,187

Schedule Of Depreciation Expense

	For the three months ended June 30,				For the six months ended June 30,
($ in millions)	2019		2018		2019		2018
Depreciation expense	$	342	$	343	$	695	$	688