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Investments and Related Matters (Tables) | 12 Months Ended
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Dec. 31, 2016
Investment Segment |
Investment and Related Matters [Line Items] |
Investment | Investments, and securities sold, not yet purchased consist of equities, bonds, bank debt and other corporate obligations, all of which are reported at fair value in our consolidated balance sheets. These investments are considered trading securities. In addition, our Investment segment has certain derivative transactions which are discussed in Note 6, "Fair Value Measurements - Investment." The carrying value and detail of security type and business sector with respect to investments and securities sold, not yet purchased held by our Investment segment consist of the following:
| December 31,
| 2016 |  | 2015
Assets | (in millions)
Investments: |  |  |
Equity securities: |  |  |
Basic materials | $ | 963 |  |  | $ | 563 |
Communications | 169 |  |  | 407 |
Consumer, non-cyclical | 2,677 |  |  | 3,684 |
Consumer, cyclical | 408 |  |  | 115 |
Diversified | 7 |  |  | 17 |
Energy | 1,278 |  |  | 1,461 |
Financial | 2,385 |  |  | 2,094 |
Industrial | 214 |  |  | 188 |
Technology | 911 |  |  | 5,795 |
Utilities | 11 |  |  | — |
| 9,023 |  |  | 14,324 |
Corporate debt: |  |  |
Consumer, cyclical | 186 |  |  | 55 |
Financial | 4 |  |  | 4 |
Sovereign debt | — |  |  | 13 |
| 190 |  |  | 72 |
Mortgage-backed securities: |  |  |
Financial | — |  |  | 157 |
| $ | 9,213 |  |  | $ | 14,553 |
Liabilities |  |  |
Securities sold, not yet purchased, at fair value: |  |  |
Equity securities: |  |  |
Consumer, cyclical | 968 |  |  | 794 |
Energy | 19 |  |  | — |
Industrial | 100 |  |  | — |
| 1,087 |  |  | 794 |
Debt securities: |  |  |
Consumer, cyclical | 52 |  |  | — |
| $ | 1,139 |  |  | $ | 794 |
Other segments |
Investment and Related Matters [Line Items] |
Investment | The carrying value of investments held by our other segments and our Holding Company consist of the following:
| December 31,
| 2016 |  | 2015
| (in millions)
Equity method investments | $ | 302 |  |  | $ | 323 |
Other investments | 366 |  |  | 475 |
| $ | 668 |  |  | $ | 798 |

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- Definition A table of investments, shown as a text block. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 6 -Section 10 -Paragraph (c) -Subparagraph (1) + Details
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