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Short-Term Debt (Tables) | 12 Months Ended
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Dec. 31, 2017
Debt Disclosure [Abstract] |
Short-Term Debt |
| At December 31 |
| 2017 |  |  |  | 2016 |
Commercial paper 1 | $ | 5,379 |  |  |  | $ | 10,410 |
Notes payable to banks and others with originating terms of one year or less | — |  |  |  | 50 |
Current maturities of long-term debt 2 | 6,720 |  |  |  | 6,253 |
Current maturities of long-term capital leases | 15 |  |  |  | 14 |
Redeemable long-term obligations |  |  |  |
Long-term debt | 3,078 |  |  |  | 3,113 |
Capital leases | — |  |  |  | — |
Subtotal | 15,192 |  |  |  | 19,840 |
Reclassified to long-term debt | (10,000 | ) |  |  | (9,000 | )
Total short-term debt | $ | 5,192 |  |  |  | $ | 10,840 |
1 Weighted-average interest rates at December 31, 2017 and 2016, were 1.30 percent and 0.74 percent, respectively. |  |  |  |
2 Net of unamortized discounts and issuance costs. |  |  |  |

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- Definition Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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