Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF INCOME Income Statement Parenthetical

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CONSOLIDATED STATEMENTS OF INCOME Income Statement Parenthetical - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Statement Parenthetical [Abstract]      
Discontinued Operation, Tax Effect of Discontinued Operation $ 47 $ 0 $ 0