Restructuring Charges (Provisions, Respective Payments, and Remaining Accrued Balance) (Details) (USD $) In Thousands	12 Months Ended
Mar. 31, 2011	Mar. 31, 2010
Balance, beginning of period		$ 161,467
Provisions for charges incurred during the year		107,528
Non-cash charges incurred during the period		(48,576)
Balance, end of period	29,322	64,245
Less: Current portion (classified as other current liabilities)	16,821
Accrued restructuring costs, net of current portion (classified as other liabilities)	12,501
2010 [Member]
Cash payments for charges incurred	(11,606)	(50,682)
2010 [Member] \| Severance [Member]
Cash payments for charges incurred	(10,574)	(29,661)
2010 [Member] \| Long-Lived Asset Impairment [Member]
Cash payments for charges incurred
2010 [Member] \| Other Exit Costs [Member]
Cash payments for charges incurred	(1,032)	(21,021)
2009 [Member]
Cash payments for charges incurred		(65,754)
2009 [Member] \| Severance [Member]
Cash payments for charges incurred		(61,926)
2009 [Member] \| Long-Lived Asset Impairment [Member]
Cash payments for charges incurred
2009 [Member] \| Other Exit Costs [Member]
Cash payments for charges incurred		(3,828)
2008 and Prior [Member]
Cash payments for charges incurred		(39,738)
2008 and Prior [Member] \| Severance [Member]
Cash payments for charges incurred		(22,603)
2008 and Prior [Member] \| Long-Lived Asset Impairment [Member]
Cash payments for charges incurred
2008 and Prior [Member] \| Other Exit Costs [Member]
Cash payments for charges incurred		(17,135)
2009 and Prior [Member]
Cash payments for charges incurred	(23,317)
2009 and Prior [Member] \| Severance [Member]
Cash payments for charges incurred	(10,046)
2009 and Prior [Member] \| Long-Lived Asset Impairment [Member]
Cash payments for charges incurred
2009 and Prior [Member] \| Other Exit Costs [Member]
Cash payments for charges incurred	(13,271)
Severance [Member]
Balance, beginning of period		101,213
Provisions for charges incurred during the year		41,193
Non-cash charges incurred during the period
Balance, end of period	7,596	28,216
Less: Current portion (classified as other current liabilities)	7,557
Accrued restructuring costs, net of current portion (classified as other liabilities)	39
Long-Lived Asset Impairment [Member]
Balance, beginning of period
Provisions for charges incurred during the year		43,112
Non-cash charges incurred during the period		(43,112)
Balance, end of period
Less: Current portion (classified as other current liabilities)
Accrued restructuring costs, net of current portion (classified as other liabilities)
Other Exit Costs [Member]
Balance, beginning of period		60,254
Provisions for charges incurred during the year		23,223
Non-cash charges incurred during the period		(5,464)
Balance, end of period	21,726	36,029
Less: Current portion (classified as other current liabilities)	9,264
Accrued restructuring costs, net of current portion (classified as other liabilities)	$ 12,462

The amount of cash paid during the reporting period for charges associated with the consolidation and relocation of operations, disposition or abandonment of operations or productive assets (that is, for reorganizing and restructuring charges and other related expenses). These charges may be incurred in connection with a business combination, change in strategic plan, a managerial response to declines in demand, increasing costs or other environmental factors.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination and to asset retirement obligations.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146
-Paragraph 20

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying amount as of the balance sheet date of known and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding costs or losses pertaining to an entity newly acquired in a business combination, which are expected to be paid after one year or beyond the next operating cycle, if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146
-Paragraph 20

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Paragraph Question 4

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of consideration other than cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 95-3

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 146

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration