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v3.19.2

Debt and Credit Facilities (Tables) | 6 Months Ended
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Jun. 30, 2019
Long-term Debt, Unclassified [Abstract] |
Schedule of Long-term Debt Instruments |
Summary of Total Debt | June 2019 |  | December 2018
Senior unsecured notes: |  |  |
| Rate |  | Due |  |  |
| 1.800% |  | January 15, 2019 | $ | — |  |  | $ | 500 |
| 2.000% |  | March 8, 2019 | — |  |  | 750 |
| 4.375% |  | January 15, 2020 | 500 |  |  | 499 |
| Variable |  | November 30, 2020 | 341 |  |  | 343 |
| 2.625% |  | March 15, 2021 | 748 |  |  | 747 |
| 1.125% |  | November 30, 2023 | 623 |  |  | 627 |
| 3.375% |  | May 15, 2024 | 586 |  |  | 584 |
| 3.375% |  | November 1, 2025 | 746 |  |  | 746 |
| 3.500% |  | March 15, 2026 | 990 |  |  | 990 |
| 2.125% |  | November 30, 2027 | 847 |  |  | 853 |
| 3.650% |  | March 7, 2028 | 595 |  |  | 595 |
| 2.625% |  | November 30, 2030 | 729 |  |  | 733 |
| 4.100% |  | April 1, 2043 | 391 |  |  | 391 |
| 4.375% |  | May 15, 2044 | 395 |  |  | 395 |
| 4.625% |  | March 15, 2046 | 981 |  |  | 980 |
Other | 41 |  |  | 126 |
Total debt | $ | 8,513 |  |  | $ | 9,859 |
Less current maturities of debt | 539 |  |  | 1,373 |
Total long-term debt | $ | 7,974 |  |  | $ | 8,486 |
Unamortized debt issuance costs | $ | 47 |  |  | $ | 50 |
Available borrowing capacity | $ | 1,531 |  |  | $ | 1,548 |
Fair value of senior unsecured notes | $ | 9,142 |  |  | $ | 9,746 |

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