Restructuring Costs and Other Charges (Tables)

6 Months Ended

Jun. 30, 2017

Restructuring Costs and Other Charges

Restructuring Reserve Rollforward [Table Text Block]

($ in millions)
Balance, January 1, 2017	$	47
Severance costs		32
Cash payments during the period		(66)
Balance, June 30, 2017	$	13