Pension Benefits (Tables) (Pension Plans, Defined Benefit [Member])

12 Months Ended

Mar. 31, 2014

Pension Plans, Defined Benefit [Member]

Defined Benefit Plan Disclosure [Line Items]

Schedule of Net Periodic Expense for Pension Plans

	U.S. Plans									Non-U.S. Plans
	Years Ended March 31,									Years Ended March 31,
(In millions)	2014			2013			2012			2014			2013			2012
Service cost - benefits earned during the year	$	4		$	4		$	4		$	6		$	3		$	3
Interest cost on projected benefit obligation	19			21			24			11			7			7
Expected return on assets	(20		)	(20		)	(23		)	(12		)	(8		)	(8		)
Amortization of unrecognized actuarial loss, prior service costs and net transitional obligation	32			28			24			4			4			3
Curtailment gain	—			—			—			(1		)	—			—
Net periodic pension expense	$	35		$	33		$	29		$	8		$	6		$	5

Schedule of Changes in Benefit Obligations and Plan Assets for Pension Plans

	U.S. Plans						Non-U.S. Plans
	Years Ended March 31,						Years Ended March 31,
(In millions)	2014			2013			2014			2013
Change in benefit obligations
Benefit obligation at beginning of period (1)	$	580		$	527		$	156		$	143
Service cost	4			4			6			3
Interest cost	19			21			11			7
Actuarial (gain) loss	(24		)	58			15			15
Benefit payments	(30		)	(29		)	(12		)	(6		)
Amendments	(9		)	—			—			—
Acquisitions	—			—			740			—
Foreign exchange impact and other	—			(1		)	18			(6		)
Benefit obligation at end of period (1)	$	540		$	580		$	934		$	156
Change in plan assets
Fair value of plan assets at beginning of period	$	290		$	284		$	135		$	126
Actual return on plan assets	28			19			11			12
Employer and participant contributions	12			17			12			8
Benefits paid	(30		)	(29		)	(10		)	(6		)
Acquisitions	—			—			426			—
Foreign exchange impact and other	—			(1		)	16			(5		)
Fair value of plan assets at end of period	$	300		$	290		$	590		$	135
Funded status at end of period	$	(240	)	$	(290	)	$	(344	)	$	(21	)
Amounts recognized on the balance sheet
Current liabilities	$	(13	)	$	(3	)	$	(9	)	$	—
Long-term liabilities	(227		)	(287		)	(335		)	(21		)
Total	$	(240	)	$	(290	)	$	(344	)	$	(21	)

(1) The benefit obligation is the projected benefit obligation.

Schedule of Projected Benefit Obligation, Accumulated Benefit Obligation and Fair Value of Plan Assets for Pension Plans

	U.S. Plans				Non-U.S. Plans
	March 31,				March 31,
(In millions)	2014		2013		2014		2013
Projected benefit obligation	$	540	$	580	$	934	$	156
Accumulated benefit obligation	540		579		894		154
Fair value of plan assets	300		290		590		135

Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]

	U.S. Plans					Non-U.S. Plans
	March 31,					March 31,
(In millions)	2014			2013		2014		2013
Net actuarial loss	$	188		$	251	$	71	$	59
Prior service (credit) cost	(7		)	2		—		(2		)
Total	$	181		$	253	$	71	$	57

Schedule of Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income

	U.S. Plans									Non-U.S. Plans
	Years Ended March 31,									Years Ended March 31,
(In millions)	2014			2013			2012			2014			2013			2012
Net actuarial (gain) loss	$	(31	)	$	59		$	42		$	12		$	11		$	19
Prior service credit	(8		)	—			—			—			—			—
Amortization of:
Net actuarial loss	(32		)	(27		)	(23		)	(4		)	(4		)	(2		)
Prior service (cost) credit	—			(1		)	(1		)	2			—			(1		)
Foreign exchange impact and other	(1		)	—			—			4			(4		)	—
Total recognized in other comprehensive loss (income)	$	(72	)	$	31		$	18		$	14		$	3		$	16

Schedule of Weighted-Average Assumptions Used to Estimate Net Periodic Pension Expense and Actuarial Present Value of Benefit Obligations

	U.S. Plans						Non-U.S. Plans
	Years Ended March 31,						Years Ended March 31,
	2014		2013		2012		2014		2013		2012
Net periodic pension expense
Discount rates	3.39	%	4.11	%	4.82	%	3.95	%	4.50	%	5.42	%
Rate of increase in compensation	4.00		4.00		4.00		2.66		3.10		3.45
Expected long-term rate of return on plan assets	7.25		7.25		8.00		5.71		6.13		6.42
Benefit obligation
Discount rates	3.58	%	3.40	%	4.15	%	3.92	%	4.10	%	4.51	%
Rate of increase in compensation	4.00		4.00		4.00		3.27		3.05		3.06

Schedule of Sensitivity to Changes in Weighted-Average Discount Rate for U.S. Pension Plans

	U.S. Plans				Non-U.S. Plans
(In millions)	One Percentage Point Increase		One Percentage Point Decrease		One Percentage Point Increase		One Percentage Point Decrease
Increase (decrease) on projected benefit obligation	$	(35)	$	40	$	(97)	$	119
Increase (decrease) on net periodic pension cost		(2)		2		(3)		4

Summary of Pension Plan Assets Using Fair Value Hierarchy by Asset Class

	U.S. Plans								Non-U.S. Plans
	March 31, 2014								March 31, 2014
(In millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	8	$	—	$	—	$	8	$	7	$	—	$	—	$	7
Equity securities:
Common and preferred stock	19		—		—		19		—		—		—		—
Equity commingled funds	—		132		—		132		6		157		—		163
Fixed income securities:
Government securities	—		7		—		7		4		—		—		4
Corporate bonds	—		22		—		22		6		236		—		242
Mortgage-backed securities	—		10		—		10		—		—		—		—
Asset-backed securities and other	—		22		—		22		—		—		—		—
Fixed income commingled funds	—		63		—		63		—		45		—		45
Other:
Real estate funds	—		—		16		16		—		19		7		26
Other commingled funds	—		—		—		—		3		49		—		52
Other	—		—		—		—		—		46		5		51
Total	$	27	$	256	$	16	299		$	26	$	552	$	12	590
Receivables (1)							1								—
Total							$	300							$	590

(1) Represents pending trades at March 31, 2014.

	U.S. Plans								Non-U.S. Plans
	March 31, 2013								March 31, 2013
(In millions)	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash and cash equivalents	$	—	$	8	$	—	$	8	$	3	$	—	$	—	$	3
Equity securities:
Common and preferred stock	20		—		—		20		—		—		—		—
Equity commingled funds	—		127		—		127		—		82		—		82
Fixed income securities:
Government securities	—		12		—		12		—		—		—		—
Corporate bonds	—		19		—		19		—		9		—		9
Mortgage-backed securities	—		6		—		6		—		—		—		—
Asset-backed securities and other	—		22		—		22		—		—		—		—
Fixed income commingled funds	—		61		—		61		—		36		—		36
Other:
Real estate funds	—		—		14		14		—		—		5		5
Total	$	20	$	255	$	14	289		$	3	$	127	$	5	135
Receivables (1)							1								—
Total							$	290							$	135

(1) Represents pending trades at March 31, 2013.

Schedule of Reconciliation of Level 3 Plan Assets Held

	U.S. Plans						Non-U.S. Plans
(In millions)	Real Estate Funds		Other		Total		Real Estate Funds		Other		Total
Balance at March 31, 2012	$	12	$	—	$	12	$	5	$	—	$	5
Unrealized gain on plan assets still held	1		—		1		—		—		—
Purchases, sales and settlements	1		—		1		—		—		—
Balance at March 31, 2013	$	14	$	—	$	14	$	5	$	—	$	5
Acquisitions	—		—		—		1		5		6
Unrealized gain on plan assets still held	2		—		2		1		—		1
Purchases, sales and settlements	—		—		—		—		—		—
Balance at March 31, 2014	$	16	$	—	$	16	$	7	$	5	$	12