Stockholders' Equity (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended				6 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Stockholders' Equity [Line Items]
Dividends declared per common share	$ 0.24		$ 0.24		$ 0.48		$ 0.44
Treasury stock shares acquired	0		0		0		200,000
Outstanding shares authorized for repurchase	$ 340				$ 340
OCI foreign currency translation adjustment net of tax, NCI portion	139				151
Net foreign currency loss, reclassified from AOCI	$ (10)	[1]	$ 44	[1]	$ (10)	[1]	$ 44	[1]
Old Rate Per Share [Member]
Stockholders' Equity [Line Items]
Dividends declared per common share			$ 0.20
New Rate Per Share [Member]
Stockholders' Equity [Line Items]
Dividends declared per common share			$ 0.24
Distribution Solutions [Member] | Nadro [Member]
Stockholders' Equity [Line Items]
Equity method investment, ownership percentage			49.00%				49.00%

[1] The second quarter and first six months of 2014 reflect net foreign currency losses of $44 million reclassified from accumulated other comprehensive income to other income within our consolidated statement of operations due to our sale of our 49% equity interest in Nadro.