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Basis of Presentation and Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2017
Accounting Policies [Abstract] |
Schedule of Revenues from Third Party Payers, Uninsured and Other Payers | Our revenues from third-party payers, the uninsured and other for the quarters and nine months ended September 30, 2017 and 2016 are summarized in the following table (dollars in millions):
|  | Quarter |
|  | 2017 |  |  | Ratio |  |  | 2016 |  |  | Ratio |
Medicare |  | $ | 2,354 |  |  |  | 22.0 | % |  | $ | 2,158 |  |  |  | 21.0 | %
Managed Medicare |  |  | 1,156 |  |  |  | 10.8 |  |  |  | 1,068 |  |  |  | 10.4 |
Medicaid |  |  | 362 |  |  |  | 3.4 |  |  |  | 405 |  |  |  | 3.9 |
Managed Medicaid |  |  | 582 |  |  |  | 5.4 |  |  |  | 611 |  |  |  | 6.0 |
Managed care and other insurers |  |  | 6,039 |  |  |  | 56.4 |  |  |  | 5,863 |  |  |  | 57.1 |
International (managed care and other insurers) |  |  | 276 |  |  |  | 2.6 |  |  |  | 285 |  |  |  | 2.8 |
|  |  | 10,769 |  |  |  | 100.6 |  |  |  | 10,390 |  |  |  | 101.2 |
Uninsured |  |  | 849 |  |  |  | 7.9 |  |  |  | 336 |  |  |  | 3.3 |
Other |  |  | 349 |  |  |  | 3.3 |  |  |  | 384 |  |  |  | 3.7 |
Revenues before provision for doubtful accounts |  |  | 11,967 |  |  |  | 111.8 |  |  |  | 11,110 |  |  |  | 108.2 |
Provision for doubtful accounts |  |  | (1,271 | ) |  |  | (11.8 | ) |  |  | (840 | ) |  |  | (8.2 | )
Revenues |  | $ | 10,696 |  |  |  | 100.0 | % |  | $ | 10,270 |  |  |  | 100.0 | %
|  | Nine Months |
|  | 2017 |  |  | Ratio |  |  | 2016 |  |  | Ratio |
Medicare |  | $ | 7,080 |  |  |  | 22.1 | % |  | $ | 6,641 |  |  |  | 21.5 | %
Managed Medicare |  |  | 3,546 |  |  |  | 11.1 |  |  |  | 3,250 |  |  |  | 10.5 |
Medicaid |  |  | 1,188 |  |  |  | 3.7 |  |  |  | 1,248 |  |  |  | 4.0 |
Managed Medicaid |  |  | 1,798 |  |  |  | 5.6 |  |  |  | 1,816 |  |  |  | 5.9 |
Managed care and other insurers |  |  | 18,071 |  |  |  | 56.4 |  |  |  | 17,324 |  |  |  | 56.2 |
International (managed care and other insurers) |  |  | 814 |  |  |  | 2.5 |  |  |  | 926 |  |  |  | 3.0 |
|  |  | 32,497 |  |  |  | 101.4 |  |  |  | 31,205 |  |  |  | 101.1 |
Uninsured |  |  | 1,593 |  |  |  | 5.0 |  |  |  | 750 |  |  |  | 2.4 |
Other |  |  | 1,066 |  |  |  | 3.3 |  |  |  | 1,286 |  |  |  | 4.2 |
Revenues before provision for doubtful accounts |  |  | 35,156 |  |  |  | 109.7 |  |  |  | 33,241 |  |  |  | 107.7 |
Provision for doubtful accounts |  |  | (3,104 | ) |  |  | (9.7 | ) |  |  | (2,392 | ) |  |  | (7.7 | )
Revenues |  | $ | 32,052 |  |  |  | 100.0 | % |  | $ | 30,849 |  |  |  | 100.0 | %

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