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Acquisitions and Divestitures (Acquisitions) (Details) - USD ($) $ in Millions |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 30, 2012 | Jun. 29, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Jun. 30, 2015
Consideration Transferred: |  |  |  |  |  |
Total consideration transferred |  | $ 792 | $ 0 | $ 0 | $ 792 |
Preliminary Purchase Price Allocation: |  |  |  |  |  |
Goodwill |  |  | 1,387 | 1,409 | 1,435 | $ 1,383
Liabilities assumed in conjunction with the acquisition of businesses |  |  |  |  |  |
Fair value of assets acquired |  |  | 67 | 0 | 1,071 |
Fair value of consideration transferred for DJI business |  | 792 | 0 | 0 | 792 |
Cash paid (net of cash acquired) |  |  | 52 | 0 | 177 |
Liabilities assumed |  |  | $ 15 | $ 0 | $ 102 |
Fair Value of S&P Index [Member] |  |  |  |  |  |
Consideration Transferred: |  |  |  |  |  |
Fair value of contribution |  | 571 |  |  |  |
DJI [Member] |  |  |  |  |  |
Consideration Transferred: |  |  |  |  |  |
Total consideration transferred | $ 792 |  |  |  |  |
Preliminary Purchase Price Allocation: |  |  |  |  |  |
Current assets |  | 79 |  |  |  |
Indefinite-lived intangibles |  | 470 |  |  |  |
Goodwill |  | 111 |  |  |  |
Current liabilities |  | (11) |  |  |  |
Total net assets |  | 792 |  |  |  |
Liabilities assumed in conjunction with the acquisition of businesses |  |  |  |  |  |
Fair value of consideration transferred for DJI business | $ 792 |  |  |  |  |
DJI [Member] | Customer relationships |  |  |  |  |  |
Preliminary Purchase Price Allocation: |  |  |  |  |  |
Finite lived intangible assets |  | 110 |  |  |  |
DJI [Member] | Other Intangible Assets [Member] |  |  |  |  |  |
Preliminary Purchase Price Allocation: |  |  |  |  |  |
Finite lived intangible assets |  | 33 |  |  |  |
DJI [Member] | Fair Value of Noncontrolling interest of DJI [Member] |  |  |  |  |  |
Consideration Transferred: |  |  |  |  |  |
Fair value of contribution |  | $ 221 |  |  |  |

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