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Condensed Consolidated Statements of Equity (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Cash dividends declared, per share $ 0.17 $ 0.15 $ 0.64 $ 0.58
Noncontrolling interest $ 92 $ 66 $ 88 $ 103
Change in noncontrolling interest (37)
Net losses $ 3 (12)    
Other comprehensive losses, net of taxes $ 13 $ (25)