Property, Plant And Equipment (Tables)

3 Months Ended

Mar. 31, 2017

Property, Plant And Equipment [Abstract]

Property, Plant And Equipment, Net

($ in millions)	March 31, 2017		December 31, 2016
Property, plant and equipment	$	25,626	$	25,541
Less:  Accumulated depreciation		(11,010)		(10,639)
Property, plant and equipment, net	$	14,616	$	14,902

Schedule Of Depreciation Expense

	For the three months ended March 31,
($ in millions)	2017		2016
Depreciation expense	$	376	$	240