Property, Plant And Equipment (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment, Net

($ in millions)	March 31, 2019		December 31, 2018
Property, plant and equipment	$	27,924	$	27,657
Less:  Accumulated depreciation		(13,890)		(13,470)
Property, plant and equipment, net	$	14,034	$	14,187

Schedule Of Depreciation Expense

	For the three months ended March 31,
($ in millions)	2019		2018
Depreciation expense	$	353	$	345