Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Legal and Regulatory Proceedings (Details)

v3.19.1
Commitments and Contingencies Legal and Regulatory Proceedings (Details)
€ in Millions, $ in Millions, ₩ in Billions
3 Months Ended 6 Months Ended 12 Months Ended
Apr. 16, 2019
Mar. 31, 2019
USD ($)
Dec. 24, 2017
USD ($)
Mar. 31, 2019
USD ($)
Mar. 25, 2018
USD ($)
Sep. 30, 2018
EUR (€)
Sep. 24, 2017
USD ($)
Sep. 24, 2017
KRW (₩)
Sep. 27, 2009
USD ($)
Sep. 27, 2009
KRW (₩)
Jan. 03, 2019
EUR (€)
Sep. 30, 2018
USD ($)
Apple [Member]                        
Loss Contingencies [Line Items]                        
Financial guarantees to enforce injunction   $ 1,500   $ 1,500                
Apple [Member] | Euro Member Countries, Euro                        
Loss Contingencies [Line Items]                        
Financial guarantees to enforce injunction | €                     € 1,300  
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        
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   $ 1,140   $ 1,140               $ 1,167
EC [Member] | Euro Member Countries, Euro                        
Loss Contingencies [Line Items]                        
Loss contingency, loss in period | €           € 997            
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                    
Subsequent Event [Member] | Apple [Member]                        
Loss Contingencies [Line Items]                        
Terms of settlement agreements with Apple On April 16, 2019, we entered into settlement agreements with Apple and its contract manufacturers to dismiss all outstanding litigation between the parties.