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Automotive and GM Financial Debt (Tables) | 3 Months Ended
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Mar. 31, 2017
Automotive [Member] |
Debt Instrument [Line Items] |
Debt carrying amount and fair value |
| March 31, 2017 |  | December 31, 2016
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Total automotive debt | $ | 10,952 |  |  | $ | 11,913 |  |  | $ | 10,752 |  |  | $ | 11,612 |
Fair value utilizing Level 1 inputs |  |  | $ | 9,590 |  |  |  |  | $ | 9,515 |
Fair value utilizing Level 2 inputs |  |  | $ | 2,323 |  |  |  |  | $ | 2,097 |
GM Financial [Member] |
Debt Instrument [Line Items] |
Debt carrying amount and fair value |
| March 31, 2017 |  | December 31, 2016
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Secured debt | $ | 42,579 |  |  | $ | 42,680 |  |  | $ | 39,270 |  |  | $ | 39,357 |
Unsecured debt | 37,370 |  |  | 38,390 |  |  | 34,606 |  |  | 35,220 |
Total GM Financial debt | $ | 79,949 |  |  | $ | 81,070 |  |  | $ | 73,876 |  |  | $ | 74,577 |
Fair value utilizing Level 2 inputs |  |  | $ | 77,267 |  |  |  |  | $ | 69,990 |
Fair value utilizing Level 3 inputs |  |  | $ | 3,803 |  |  |  |  | $ | 4,587 |
GM Financial [Member] | Senior Notes [Member] |
Debt Instrument [Line Items] |
Schedule of senior notes issued | In the three months ended March 31, 2017 we issued $2.5 billion in aggregate principal amount of senior notes comprising:
|  | Amount Issued
3.45% Senior notes due January 2022 |  | $ | 1,250 |
4.35% Senior notes due January 2027 |  | $ | 750 |
Floating rate notes due January 2022 |  | $ | 500 |

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- Definition Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements. + References No definition available. + Details
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