Restructuring and Other Termination Costs (Tables)

3 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Summary of restructuring liabilities

The following table summarizes our restructuring liabilities:

	Other Current Liabilities
	($ in millions)
Balance as of December 31, 2017	$	—
Initial restructuring recognition on January 30, 2018	38
Termination benefits paid	(11		)
Balance as of March 31, 2018(a)	$	27

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(a) Remaining accrued amounts are expected to be paid by the end of the 2018 second quarter.