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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2017
Jan. 03, 2016
Dec. 28, 2014
Statement of Comprehensive Income [Abstract]      
Securities $ 104 $ 187 $ 81
Employee benefits 346 519 1,556
Derivatives & hedges $ 134 $ 95 $ 56