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Income Taxes (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Mar. 31, 2017 | Mar. 31, 2016 | Jun. 30, 2016
Income Taxes |  |  |  |  |
Effective Income Tax Rate Reconciliation, Percent | 32.30% | 36.90% | 34.40% | 35.50% |
Unrecognized tax benefits | $ 394 |  | $ 394 |  |
Unrecognized tax benefits that would impact effective tax rate | 258 |  | 258 |  | $ 355
Unrecognized tax benefits, interest and penalties accrued | 105 |  | 105 |  | 145
Amount CareFusion is liable under tax matters agreement in the event amount must be paid to the taxing authority | 140 |  | 140 |  | $ 172
Minimum |  |  |  |  |
Income Taxes |  |  |  |  |
Estimated range of decrease in unrecognized tax benefits within the next 12 months | 0 |  | 0 |  |
Maximum |  |  |  |  |
Income Taxes |  |  |  |  |
Estimated range of decrease in unrecognized tax benefits within the next 12 months | $ 45 |  | $ 45 |  |
Federal | Minimum |  |  |  |  |
Income Taxes |  |  |  |  |
Closed Tax Year | 2006 |  |  |  |
Tax years open for examination | 2008 |  |  |  |
Federal | Maximum |  |  |  |  |
Income Taxes |  |  |  |  |
Closed Tax Year | 2007 |  |  |  |
Tax years open for examination | 2016 |  |  |  |
State and Local | Minimum |  |  |  |  |
Income Taxes |  |  |  |  |
Tax years open for examination | 2008 |  |  |  |
State and Local | Maximum |  |  |  |  |
Income Taxes |  |  |  |  |
Tax years open for examination | 2016 |  |  |  |
Foreign | Minimum |  |  |  |  |
Income Taxes |  |  |  |  |
Tax years open for examination | 2008 |  |  |  |
Foreign | Maximum |  |  |  |  |
Income Taxes |  |  |  |  |
Tax years open for examination | 2016 |  |  |  |

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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(3) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
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