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Reconciliation from net cash provided by operating activities to free cash flow (in millions, unaudited):

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Three Months Ended December 31, 2013

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Net cash provided by operating activities $5,238

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Less purchases of property and equipment (2,255)

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Free cash flow $2,983

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.

Net cash used in investing activities (a) ($1,617)

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Net cash provided by financing activities $32

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(a) Includes purchases of property and equipment.