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RECENT ACCOUNTING PRONOUNCEMENTS - Effect of Topic 606 and ASU 2017-07 Adoption on Cash Flows Statement (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 25, 2018
Mar. 26, 2017
Dec. 31, 2017
Dec. 31, 2016
Operating activities        
Net earnings $ 1,157 $ 789    
Adjustments to reconcile net earnings to net cash provided by operating activities        
Depreciation and amortization 279 285    
Stock-based compensation 38 44    
Changes in assets and liabilities        
Receivables, net (108) (799)    
Contract assets (1,413) (62)    
Inventories (318) (225)    
Accounts payable 1,290 1,111    
Contract liabilities (478) (185)    
Postretirement benefit plans (1,145) 345    
Income taxes 1,064 175    
Other, net 266 188    
Net cash provided by operating activities $ 632 1,666    
Historical        
Operating activities        
Net earnings   763    
Adjustments to reconcile net earnings to net cash provided by operating activities        
Depreciation and amortization   285    
Stock-based compensation   44    
Changes in assets and liabilities        
Receivables, net   (667)    
Contract assets   0    
Inventories   (404)    
Accounts payable   1,111    
Contract liabilities   (204)    
Postretirement benefit plans   345    
Income taxes   175    
Other, net   218    
Net cash provided by operating activities   1,666    
Adjustments for | ASC 606        
Operating activities        
Net earnings   26 $ (39) $ (92)
Adjustments to reconcile net earnings to net cash provided by operating activities        
Depreciation and amortization   0    
Stock-based compensation   0    
Changes in assets and liabilities        
Receivables, net   (132)    
Contract assets   (62)    
Inventories   179    
Accounts payable   0    
Contract liabilities   19    
Postretirement benefit plans   0    
Income taxes   0    
Other, net   (30)    
Net cash provided by operating activities   $ 0