Property, Plant And Equipment (Tables)

9 Months Ended

Sep. 30, 2019

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment, Net

($ in millions)	September 30, 2019		December 31, 2018
Property, plant and equipment	$	26,274	$	27,657
Less: Accumulated depreciation		(13,301)		(13,470)
Property, plant and equipment, net	$	12,973	$	14,187

Schedule Of Depreciation Expense

	For the three months ended September 30,				For the nine months ended September 30,
($ in millions)	2019		2018		2019		2018
Depreciation expense	$	321	$	337	$	1,016	$	1,025