Goodwill and Acquisition-Related Intangibles, Net (Schedule of Future Amortization of Finite-Lived Intangibles) (Details) (USD $) In Millions	12 Months Ended
Mar. 31, 2011
Goodwill and Acquisition-Related Intangibles, Net
2012	$ 51
2013	28
2014	19
2015	15
2016	6
Thereafter	25
Total	$ 144

The amount of amortization expense expected to be recognized after the fourth twelve-month period following the current fiscal year-end date.

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The aggregate estimated amortization expense for each of the five succeeding fiscal years for intangible assets subject to amortization.