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Other Financial Data Schedule of Other Non-current Liabilities (Details) (USD $) In Millions, unless otherwise specified | Jun. 30, 2014 | Dec. 31, 2013
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Other Financial Data [Abstract] |  |
Deferred tax liabilities | $ 392 | $ 420
Taxes payable | 194 | 184
Leases | 191 | 204
Deferred revenue | 159 | 134
Compensation and benefits | 60 | 105
Other | 293 | 305
Other Liabilities, Noncurrent | $ 1,289 | $ 1,352

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