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Basis of Presentation and Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 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 six months ended June 30, 2017 and 2016 are summarized in the following table (dollars in millions):
|  | Quarter |
|  | 2017 |  |  | Ratio |  |  | 2016 |  |  | Ratio |
Medicare |  | $ | 2,321 |  |  |  | 21.6 | % |  | $ | 2,217 |  |  |  | 21.5 | %
Managed Medicare |  |  | 1,187 |  |  |  | 11.1 |  |  |  | 1,078 |  |  |  | 10.4 |
Medicaid |  |  | 453 |  |  |  | 4.2 |  |  |  | 416 |  |  |  | 4.0 |
Managed Medicaid |  |  | 575 |  |  |  | 5.4 |  |  |  | 608 |  |  |  | 5.9 |
Managed care and other insurers |  |  | 6,106 |  |  |  | 56.9 |  |  |  | 5,759 |  |  |  | 55.8 |
International (managed care and other insurers) |  |  | 269 |  |  |  | 2.5 |  |  |  | 324 |  |  |  | 3.1 |
|  |  | 10,911 |  |  |  | 101.7 |  |  |  | 10,402 |  |  |  | 100.7 |
Uninsured |  |  | 519 |  |  |  | 4.8 |  |  |  | 225 |  |  |  | 2.2 |
Other |  |  | 376 |  |  |  | 3.5 |  |  |  | 454 |  |  |  | 4.4 |
Revenues before provision for doubtful accounts |  |  | 11,806 |  |  |  | 110.0 |  |  |  | 11,081 |  |  |  | 107.3 |
Provision for doubtful accounts |  |  | (1,073 | ) |  |  | (10.0 | ) |  |  | (762 | ) |  |  | (7.3 | )
Revenues |  | $ | 10,733 |  |  |  | 100.0 | % |  | $ | 10,319 |  |  |  | 100.0 | %
|  | Six Months |
|  | 2017 |  |  | Ratio |  |  | 2016 |  |  | Ratio |
Medicare |  | $ | 4,726 |  |  |  | 22.1 | % |  | $ | 4,483 |  |  |  | 21.8 | %
Managed Medicare |  |  | 2,390 |  |  |  | 11.2 |  |  |  | 2,182 |  |  |  | 10.6 |
Medicaid |  |  | 826 |  |  |  | 3.9 |  |  |  | 843 |  |  |  | 4.1 |
Managed Medicaid |  |  | 1,216 |  |  |  | 5.7 |  |  |  | 1,205 |  |  |  | 5.9 |
Managed care and other insurers |  |  | 12,032 |  |  |  | 56.3 |  |  |  | 11,461 |  |  |  | 55.7 |
International (managed care and other insurers) |  |  | 538 |  |  |  | 2.5 |  |  |  | 641 |  |  |  | 3.1 |
|  |  | 21,728 |  |  |  | 101.7 |  |  |  | 20,815 |  |  |  | 101.2 |
Uninsured |  |  | 744 |  |  |  | 3.5 |  |  |  | 414 |  |  |  | 2.0 |
Other |  |  | 717 |  |  |  | 3.4 |  |  |  | 902 |  |  |  | 4.4 |
Revenues before provision for doubtful accounts |  |  | 23,189 |  |  |  | 108.6 |  |  |  | 22,131 |  |  |  | 107.6 |
Provision for doubtful accounts |  |  | (1,833 | ) |  |  | (8.6 | ) |  |  | (1,552 | ) |  |  | (7.6 | )
Revenues |  | $ | 21,356 |  |  |  | 100.0 | % |  | $ | 20,579 |  |  |  | 100.0 | %

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