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Capital Stock and Dividends (Details) - $ / shares
3 Months Ended 9 Months Ended
Nov. 06, 2019
Aug. 07, 2019
May 08, 2019
Feb. 06, 2019
Aug. 08, 2018
May 09, 2018
Feb. 07, 2018
Sep. 28, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Dividends                      
Common Stock, Dividends, Per Share, Declared   $ 0.35 $ 0.35 $ 0.31 $ 0.31 $ 0.31 $ 0.27 $ 0.35 $ 0.31 $ 1.01 $ 0.89
Subsequent Event                      
Dividends                      
Common Stock, Dividends, Per Share, Declared $ 0.35