The components of intangible assets, all of which are finite-lived, were as follows:
| (In millions) | Gross Carrying Amount |
Accumulated Amortization |
Net Carrying Amount |
Gross Carrying Amount |
Accumulated Amortization |
Net Carrying Amount |
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| Year Ended June 30, | 2013 | 2012 | ||||||||||||||||||||||
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Technology-based (a) |
$ | 3,760 | $ | (2,110 | ) | $ | 1,650 | $ | 3,550 | $ | (1,899 | ) | $ | 1,651 | ||||||||||
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Marketing-related |
1,348 | (211 | ) | 1,137 | 1,325 | (136 | ) | 1,189 | ||||||||||||||||
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Contract-based |
823 | (688 | ) | 135 | 824 | (644 | ) | 180 | ||||||||||||||||
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Customer-related |
380 | (219 | ) | 161 | 408 | (258 | ) | 150 | ||||||||||||||||
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Total |
$ | 6,311 | $ | (3,228 | ) | $ | 3,083 | $ | 6,107 | $ | (2,937 | ) | $ | 3,170 | ||||||||||
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| (a) |
Technology-based intangible assets included $218 million and $177 million as of June 30, 2013 and 2012, respectively, of net carrying amount of software to be sold, leased, or otherwise marketed. |