Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Legal and Regulatory Proceedings (Details)

v3.19.2
Commitments and Contingencies Legal and Regulatory Proceedings (Details)
€ in Millions, $ in Millions, ₩ in Billions
 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2019
USD ($)
Mar. 31, 2019
USD ($)
Dec. 24, 2017
USD ($)
Jun. 30, 2019
USD ($)
Jun. 24, 2018
USD ($)
Sep. 30, 2018
EUR (€)
Sep. 24, 2017
KRW (₩)
Sep. 24, 2017
USD ($)
Sep. 27, 2009
KRW (₩)
Sep. 27, 2009
USD ($)
Sep. 30, 2018
USD ($)
KFTC Complaint [Member]                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period                   $ (230)  
Proceeds from fine reversal   $ 56                  
KFTC Complaint [Member] | Korea (South), Won                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period | ₩                 ₩ (273.2)    
KFTC Investigation [Member]                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period               $ (927)      
KFTC Investigation [Member] | Korea (South), Won                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period | ₩             ₩ (1,030.0)        
Icera Complaint to EC [Member]                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period $ 275                    
Icera Complaint to EC [Member] | Euro Member Countries, Euro                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period $ (242)                    
EC [Member]                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period     $ 1,200   $ (1,200)            
Per annum interest rate for financial guarantees 1.50%     1.50%              
Accrual for EC fine - other current liabilities $ 1,430     $ 1,430             $ 1,167
EC [Member] | Euro Member Countries, Euro                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period | €           € (997)          
2018 EC Fine [Member]                      
Loss Contingencies [Line Items]                      
Accrual for EC fine - other current liabilities $ 1,160     1,160              
Other Expenses [Member] | KFTC Complaint [Member]                      
Loss Contingencies [Line Items]                      
Loss contingency, loss in period   (43)   $ 43              
Investment and Other Income, Net [Member] | KFTC Complaint [Member]                      
Loss Contingencies [Line Items]                      
Interest income related to KFTC complaint   $ 13