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Changes in Estimates (Tables)
9 Months Ended
Oct. 01, 2021
Change in Accounting Estimate [Abstract]  
Schedule of Effect of Net Estimate at Completion Adjustment ("EAC") on Consolidated Statement of Income
Net EAC adjustments had the following impact to earnings for the periods presented:
Quarter EndedThree Quarters Ended
(In millions, except per share amounts)October 1, 2021October 2, 2020October 1, 2021October 2, 2020
Net EAC adjustments, before income taxes $85 $99 $247 $300 
Net EAC adjustments, net of income taxes64 74 186 225 
Net EAC adjustments, net of income taxes, per diluted common share0.32 0.34 0.91 1.03