Other Expense, Net (Tables)

9 Months Ended

Sep. 30, 2019

Other Income and Expenses [Abstract]

Schedule of other expense

	Three Months Ended September 30,				Nine Months Ended September 30,
(in millions)	2019		2018		2019		2018
Restructuring expense	$	14	$	5	$	41	$	44
Merger, acquisition and divestiture expense	4		2		10		5
Other expense (income)	—		—		12		(7		)
Other expense, net	$	18	$	7	$	63	$	42