| http://www.w3.org/ns/prov#value | - Cash provided by (used in) investing activities was $(595) million and $(951) million for Q2 2012 and Q2 2011, and $(144) million and $(561) million for the six months ended June 30, 2012 and 2011, with the variability caused primarily by purchases, maturities, and sales of marketable securities and other investments, increased capital expenditures, and increases in cash paid for acquisitions.
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