Restructuring and Impairment (Tables)

12 Months Ended

Mar. 31, 2017

Restructuring and Related Activities [Abstract]

Summary of restructuring reserve activity

The following table summarizes our restructuring liability activity and other impairment charges (in millions).

	Total restructuring liabilities			Other restructuring charges (A)		Total restructuring charges			Other impairments (B)		Total restructuring  and impairments, net
Balance as of March 31, 2014	$	47
Fiscal 2015 Activity:
Expenses	30			$	5	$	35		$	2	$	37
Cash payments	(32		)
Foreign currency translation and other (C)	(13		)
Balance as of March 31, 2015	32
Fiscal 2016 Activity:
-Provisions	23
-Reversal of expense	(2		)
Expenses	21			$	24	$	45	—	$	3	$	48
Cash payments	(22		)
Foreign currency translation and other (C)	(4		)
Balance as of March 31, 2016	27
Fiscal 2017 Activity:
Expenses	8			$	—	$	8		$	2	$	10
Cash payments	(13		)
Foreign currency translation and other (C)	2
Balance as of March 31, 2017	$	24

(A) Other restructuring charges include period expenses that were not recorded through the restructuring liability and impairments related to a restructuring activity.

(B) Other impairment charges not related to a restructuring activity.

(C) This primarily relates to the remeasurement of Brazilian real denominated restructuring liabilities.

Restructuring and related costs - North America

The following table summarizes our restructuring activity for the North America segment by plan (in millions).

		Year Ended March 31,
		2017		2016			2015			Prior to April 1, 2014
Restructuring charges - North America
Saguenay Plant Closure:
	Severance	$	—	$	—		$	—		$	5
	Fixed asset impairment (A)	—		—			—			28
	Other exit related costs	1		—			1			1
	Period expenses (A)	—		1			—			4
Total restructuring charges - North America		$	1	$	1		$	1		$	38
Restructuring payments - North America
	Severance	$	—	$	—		$	(2	)
	Other	—		(1		)	(1		)
Total restructuring payments - North America		$	—	$	(1	)	$	(3	)

(A)     These charges were not recorded through the restructuring liability.

Restructuring and related costs - Europe

The following table summarizes our restructuring activity for the Europe segment by plan (in millions).

		Year Ended March 31,
		2017			2016			2015			Prior to April 1, 2014
Restructuring charges - Europe
Business optimization
	Severance	$	—		$	—		$	3		$	42
	Pension settlement loss (A)	—			—			—			1
Corporate restructuring program
	Severance	2			4			—			—
Total restructuring charges - Europe		$	2		$	4		$	3		$	43
Restructuring payments - Europe
	Severance	$	(4	)	$	(6	)	$	(12	)
	Other	—			—			—
Total restructuring payments - Europe		$	(4	)	$	(6	)	$	(12	)

(A)     These charges were not recorded through the restructuring liability.

Restructuring and related costs - South America

The following table summarizes our restructuring activity for the South America segment by plan (in millions).

		Year Ended March 31,
		2017			2016			2015			Prior to April 1, 2014
Restructuring charges - South America
Ouro Preto closures
	Severance	$	1		$	2		$	14		$	5
	Asset impairments (A)	—			—			5			1
	Environmental (reversal) charges	—			(1		)	6			16
	Contract termination and other exit related costs	2			2			5			6
Other South America restructuring programs
	Severance	2			—			—			—
Other past restructuring programs
	Severance	—			—			—			7
	Asset impairments (A)	—			—			—			7
	Contract termination and other exit related costs	—			—			1			6
Total restructuring charges - South America		$	5		$	3		$	31		$	48
Restructuring payments - South America
	Severance	$	(2	)	$	(2	)	$	(12	)
	Other	(5		)	(3		)	(4		)
Total restructuring payments - South America		$	(7	)	$	(5	)	$	(16	)

(A)     These charges were not recorded through the restructuring liability.