Fair Value Measurements (Narrative) (Details) (USD $)	12 Months Ended				3 Months Ended	12 Months Ended			3 Months Ended	12 Months Ended				3 Months Ended	12 Months Ended	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 Distribution Solutions [Member]	Mar. 31, 2013 Distribution Solutions [Member] Nadro [Member]	Mar. 31, 2013 Distribution Solutions [Member] Nadro [Member]	Sep. 30, 2013 Distribution Solutions [Member] Nadro [Member]	Sep. 30, 2012 Distribution Solutions [Member] Nadro [Member]	Mar. 31, 2013 Technology Solutions [Member]	Mar. 31, 2014 Technology Solutions [Member]	Mar. 31, 2013 Technology Solutions [Member]	Mar. 31, 2014 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2013 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2013 Fair Value, Inputs, Level 3 [Member] Nadro [Member]	Mar. 31, 2013 Fair Value, Inputs, Level 3 [Member] Technology Solutions [Member]	Dec. 31, 2013 International Technology [Member]	Dec. 31, 2013 International Technology [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill and Intangible Asset Impairment									$ 46,000,000	$ 57,000,000	$ 46,000,000					$ 80,000,000	$ 80,000,000
Notes and Loans Payable, Carrying Value	10,400,000,000	4,900,000,000
Notes and Loans Payable, Fair Value												10,800,000,000	5,500,000,000
Impairment of an equity investment	0	191,000,000	0		191,000,000	191,000,000								191,000,000
Interest in Investee					49.00%	49.00%	49.00%	49.00%
Goodwill, Impairment Loss		$ 36,000,000		$ 0					$ 36,000,000		$ 36,000,000				$ 36,000,000