Cash Flow Information (Tables)

12 Months Ended

Dec. 31, 2017

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Paid for Interest and Income Taxes

Cash paid for interest and income taxes was as follows:

	2017		2016		2015
Interest, net of amount capitalized	$	508	$	524	$	487
Income taxes, net of amount refunded	$	118	$	324	$	345

Schedule of Cash Paid for Acquisitions Including Non-Controlling Interest

The details related to cash paid for acquisitions were as follows:

	2017		2016			2015
Assets acquired	$	—	$	—		$	2,003
Liabilities assumed	—		—			(868		)
Equity issued	—		—			(870		)
Working capital adjustment	—		(10		)	—
Increase in Arconic’s shareholders’ equity	—		—			(60		)
Cash paid	—		(10		)	205
Less: cash acquired	—		—			302
Net cash paid	$	—	$	(10	)	$	(97	)