Selected information (in US$ millions) for two close competitors,Potash Corporation of Saskatchewan Inc.andAgrium Inc., follows for the year ended December 31, 2014:

PotashAgriumProfit1,536

720Cash provided by operating activities

2,614

1,312

Cash used by investing activities(1,160

)(2,068

)Cash used by financing activities

(1,867

)856Cash and cash equivalents, end of period

215848Dividends paid

(1,141

)

(848)

Calculate the free cash flow for each company.