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Corporate Investments And Funds Held For Clients (Tables) | 3 Months Ended
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Sep. 30, 2014
Corporate Investments And Funds Held For Clients [Abstract] |
Available-for-sale Securities [Table Text Block] |
| September 30, 2014
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value (A)
Type of issue: |  |  |  |  |  |  |
Money market securities, cash and other cash equivalents | $ | 3,385.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,385.4 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |
Corporate bonds | 8,882.6 |  |  | 134.6 |  |  | (25.1 | ) |  | 8,992.1 |
U.S. Treasury and direct obligations of U.S. government agencies | 6,008.2 |  |  | 83.8 |  |  | (18.3 | ) |  | 6,073.7 |
Asset-backed securities | 2,063.7 |  |  | 3.5 |  |  | (13.0 | ) |  | 2,054.2 |
Canadian government obligations and Canadian government agency obligations | 985.8 |  |  | 6.2 |  |  | (0.6 | ) |  | 991.4 |
Canadian provincial bonds | 728.0 |  |  | 22.7 |  |  | (2.9 | ) |  | 747.8 |
Municipal bonds | 522.2 |  |  | 19.1 |  |  | (0.2 | ) |  | 541.1 |
Other securities | 817.1 |  |  | 20.7 |  |  | (0.9 | ) |  | 836.9 |
Total available-for-sale securities | 20,007.6 |  |  | 290.6 |  |  | (61.0 | ) |  | 20,237.2 |
Total corporate investments and funds held for clients | $ | 23,393.0 |  |  | $ | 290.6 |  |  | $ | (61.0 | ) |  | $ | 23,622.6 |
(A) Included within available-for-sale securities are corporate investments with fair values of $2,308.2 million and funds held for clients with fair values of $17,929.0 million. All available-for-sale securities were included in Level 2.
| June 30, 2014
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value (B)
Type of issue: |  |  |  |  |  |  |  |  |  |  |
Money market securities, cash and other cash equivalents | $ | 2,773.7 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,773.7 |
Available-for-sale securities: |  |  |  |  |  |  |  |  |  |  |
Corporate bonds | 8,720.1 |  |  | 171.1 |  |  | (15.0 | ) |  | 8,876.2 |
U.S. Treasury and direct obligations of U.S. government agencies | 6,051.4 |  |  | 107.3 |  |  | (11.7 | ) |  | 6,147.0 |
Asset-backed securities | 1,822.6 |  |  | 6.1 |  |  | (6.9 | ) |  | 1,821.8 |
Canadian government obligations and Canadian government agency obligations | 1,031.4 |  |  | 7.6 |  |  | (0.8 | ) |  | 1,038.2 |
Canadian provincial bonds | 747.7 |  |  | 25.3 |  |  | (2.5 | ) |  | 770.5 |
Municipal bonds | 543.3 |  |  | 19.4 |  |  | (0.5 | ) |  | 562.2 |
Other securities | 915.6 |  |  | 25.7 |  |  | (0.7 | ) |  | 940.6 |
Total available-for-sale securities | 19,832.1 |  |  | 362.5 |  |  | (38.1 | ) |  | 20,156.5 |
Total corporate investments and funds held for clients | $ | 22,605.8 |  |  | $ | 362.5 |  |  | $ | (38.1 | ) |  | $ | 22,930.2 |
(B) Included within available-for-sale securities are corporate investments with fair values of $2,086.3 million and funds held for clients with fair values of $18,070.2 million. All available-for-sale securities were included in Level 2.
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] | The unrealized losses and fair values of available-for-sale securities that have been in an unrealized loss position for a period of less than and greater than 12 months as of September 30, 2014, are as follows:
| September 30, 2014
| Securities in unrealized loss position less than 12 months |  | Securities in unrealized loss position greater than 12 months |  | Total
| Unrealized losses |  | Fair market value |  | Unrealized losses |  | Fair market value |  | Gross unrealized losses |  | Fair market value
Corporate bonds | $ | (7.3 | ) |  | $ | 1,567.9 |  |  | $ | (17.8 | ) |  | $ | 948.6 |  |  | $ | (25.1 | ) |  | $ | 2,516.5 |
U.S. Treasury and direct obligations of U.S. government agencies | (1.7 | ) |  | 395.2 |  |  | (16.6 | ) |  | 937.8 |  |  | (18.3 | ) |  | 1,333.0 |
Asset-backed securities | (4.2 | ) |  | 856.0 |  |  | (8.8 | ) |  | 532.4 |  |  | (13.0 | ) |  | 1,388.4 |
Canadian government obligations and Canadian government agency obligations | (0.6 | ) |  | 106.5 |  |  | — |  |  | 8.1 |  |  | (0.6 | ) |  | 114.6 |
Canadian provincial bonds | (1.2 | ) |  | 91.1 |  |  | (1.7 | ) |  | 106.0 |  |  | (2.9 | ) |  | 197.1 |
Municipal bonds | — |  |  | 28.1 |  |  | (0.2 | ) |  | 13.3 |  |  | (0.2 | ) |  | 41.4 |
Other securities | (0.1 | ) |  | 19.1 |  |  | (0.8 | ) |  | 45.0 |  |  | (0.9 | ) |  | 64.1 |
| $ | (15.1 | ) |  | $ | 3,063.9 |  |  | $ | (45.9 | ) |  | $ | 2,591.2 |  |  | $ | (61.0 | ) |  | $ | 5,655.1 |
The unrealized losses and fair values of available-for-sale securities that have been in an unrealized loss position for a period of less than and greater than 12 months as of June 30, 2014, are as follows:
| June 30, 2014
| Securities in unrealized loss position less than 12 months |  | Securities in unrealized loss position greater than 12 months |  | Total
| Unrealized losses |  | Fair market value |  | Unrealized losses |  | Fair market value |  | Gross unrealized losses |  | Fair market value
Corporate bonds | $ | (0.9 | ) |  | $ | 313.8 |  |  | $ | (14.1 | ) |  | $ | 1,026.0 |  |  | $ | (15.0 | ) |  | $ | 1,339.8 |
U.S. Treasury and direct obligations of U.S. government agencies | (0.3 | ) |  | 84.6 |  |  | (11.4 | ) |  | 944.8 |  |  | (11.7 | ) |  | 1,029.4 |
Asset-backed securities | (0.7 | ) |  | 325.4 |  |  | (6.2 | ) |  | 555.5 |  |  | (6.9 | ) |  | 880.9 |
Canadian government obligations and Canadian government agency obligations | (0.8 | ) |  | 127.2 |  |  | — |  |  | — |  |  | (0.8 | ) |  | 127.2 |
Canadian provincial bonds | (0.9 | ) |  | 75.2 |  |  | (1.6 | ) |  | 118.6 |  |  | (2.5 | ) |  | 193.8 |
Municipal bonds | (0.1 | ) |  | 42.0 |  |  | (0.4 | ) |  | 22.6 |  |  | (0.5 | ) |  | 64.6 |
Other securities | — |  |  | 13.9 |  |  | (0.7 | ) |  | 45.7 |  |  | (0.7 | ) |  | 59.6 |
| $ | (3.7 | ) |  | $ | 982.1 |  |  | $ | (34.4 | ) |  | $ | 2,713.2 |  |  | $ | (38.1 | ) |  | $ | 3,695.3 |
Classification Of Corporate Investments On The Consolidated Balance Sheets |
|  | September 30, |  | June 30,
|  | 2014 |  | 2014
Corporate investments: |  |  |  |
Cash and cash equivalents |  | $ | 2,175.7 |  |  | $ | 1,585.9 |
Short-term marketable securities |  | 2,261.6 |  |  | 2,032.2 |
Long-term marketable securities |  | 46.6 |  |  | 54.1 |
Total corporate investments |  | $ | 4,483.9 |  |  | $ | 3,672.2 |
Schedule Of Investment Of Funds Held For Clients |
|  | September 30, |  | June 30,
|  | 2014 |  | 2014
Funds held for clients: |  |  |  |
Restricted cash and cash equivalents held to satisfy client funds obligations |  | $ | 1,209.7 |  |  | $ | 1,187.8 |
Restricted short-term marketable securities held to satisfy client funds obligations |  | 1,643.7 |  |  | 1,312.5 |
Restricted long-term marketable securities held to satisfy client funds obligations |  | 16,285.3 |  |  | 16,757.7 |
Total funds held for clients |  | $ | 19,138.7 |  |  | $ | 19,258.0 |
Expected Maturities Of Available-For-Sale Securities |
One year or less | $ | 3,905.3 |
One year to two years | 4,331.5 |
Two years to three years | 3,281.7 |
Three years to four years | 2,325.1 |
After four years | 6,393.6 |
Total available-for-sale securities | $ | 20,237.2 |

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- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27337-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27198-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62586-112803 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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