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Summary Of Significant Accounting Policies Summary Of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2018
Standards Issued, Not Yet Implemented Disclosure [Abstract]  
Schedule of Change in Accounting Estimate [Table Text Block] Net cumulative catch-up adjustments to prior years' revenue and earnings, including certain reach-forward losses, across all long-term contracts were as follows:
 
2018

 
2017

 
2016

Increase to Revenue

$137

 

$559

 

$394

Increase/(decrease) to Earnings from Operations

($190
)
 

$250

 

($263
)
Increase/(decrease) to Diluted EPS

($0.29
)
 

$0.34

 

($0.36
)
Significant adjustments during the three years ended December 31, 2018 included reach-forward losses of $736, $445 and $1,127 on the USAF KC-46A Tanker contract recorded during 2018, 2017 and 2016.