Quarterly report pursuant to Section 13 or 15(d)

Acquisitions and Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest (Details)

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Acquisitions and Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest (Details)
$ in Millions
6 Months Ended
Jun. 30, 2015
USD ($)
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]  
Opening balance $ 148
Fair value of redeemable noncontrolling interest sold 7
Reclassification to redeemable noncontrolling interest (1)
Net earnings attributable to redeemable noncontrolling interests 1
Closing balance $ 155