Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Taxes
Unfavorable/(favorable) impact of settlements of federal and state tax controversies, settlements and unusual provisions, amount		$ (80,000,000)
Change in deferred tax assets valuation allowance, amount		(12,000,000)
Unfavorable/(favorable) impact due to remeasurement of unrecognized tax benefits, amount		$ 65,000,000
Net unfavorable impact of impairment losses, percent	0.00%	0.00%	33.20%
Net unfavorable impact of impairment losses, amount			$ 295,000,000
Favorable impact of revaluation of deferred tax liability and related interest on unrepatriated foreign earnings, amount			$ (64,000,000)
Favorable impact of revaluation of deferred tax liability and related interest on unrepatriated foreign earnings, percent			(7.20%)
Undistributed earnings from non-U.S. subsidiaries	$ 1,900,000,000
Deferred tax assets on tax credit carryforwards	197,000,000	$ 191,000,000
Valuation allowance on operating loss carryforwards	86,000,000
Unrecognized tax benefits	542,000,000	510,000,000	$ 650,000,000	$ 654,000,000
Unrecognized tax benefits that would impact effective tax rate	357,000,000	322,000,000	371,000,000
Unrecognized tax benefits, interest and penalties accrued	169,000,000	143,000,000	198,000,000
Unrecognized tax benefits, interest and penalties	24,000,000	46,000,000	$ 24,000,000
Amount CareFusion is liable under tax matters agreement in the event amount must be paid to the taxing authority	219,000,000	210,000,000
Minimum
Income Taxes
Estimated range of decrease in unrecognized tax benefits within the next 12 months	0
Maximum
Income Taxes
Estimated range of decrease in unrecognized tax benefits within the next 12 months	210,000,000
Federal
Income Taxes
Tax credit carryforwards	$ 210,000,000
Federal | Minimum
Income Taxes
Tax years under examination	2006
Tax years open for examination	2006
Tax years closed that were under examination	2003
Federal | Maximum
Income Taxes
Tax years under examination	2010
Tax years open for examination	2015
Tax years closed that were under examination	2005
State
Income Taxes
Tax credit carryforwards	$ 1,200,000,000
State | Minimum
Income Taxes
Tax years open for examination	2003
State | Maximum
Income Taxes
Tax years open for examination	2015
Foreign
Income Taxes
Tax credit carryforwards	$ 72,000,000
Foreign | Minimum
Income Taxes
Tax years open for examination	2003
Foreign | Maximum
Income Taxes
Tax years open for examination	2015
Provision for income tax
Income Taxes
Net unfavorable/(favorable) discrete items, amount	$ 15,000,000	$ (37,000,000)
Net unfavorable/(favorable) discrete items, percent	0.80%	(2.10%)