Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Dividends (Details)

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Stockholders' Equity Dividends (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 2 Months Ended 3 Months Ended
Mar. 21, 2018
Jan. 12, 2018
Feb. 28, 2018
Dec. 24, 2017
Dec. 25, 2016
Dividends [Line Items]          
Dividends per share announced       $ 0.57 $ 0.53
Dividends charged to retained earnings       $ 862 $ 801
Subsequent Event [Member]          
Dividends [Line Items]          
Dividends per share announced   $ 0.57      
Dividends Payable, Date declared   Jan. 12, 2018      
Dividends Payable, Date to be paid Mar. 21, 2018        
Dividends Payable, Date of record     Feb. 28, 2018