Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies Legal and Regulatory Proceedings (Details)

v3.10.0.1
Commitments and Contingencies Legal and Regulatory Proceedings (Details)
€ in Millions, $ in Millions, ₩ in Billions, $ in Billions
3 Months Ended 12 Months Ended 59 Months Ended
Sep. 30, 2018
USD ($)
Dec. 24, 2017
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2018
EUR (€)
Sep. 24, 2017
USD ($)
Sep. 24, 2017
KRW (₩)
Sep. 24, 2017
TWD ($)
Dec. 31, 2022
KFTC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, loss in period         $ 927      
EC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, loss in period   $ 1,180 $ 1,200          
Per annum interest rate for financial guarantees 1.50%   1.50%          
Loss contingency, accrual, current $ 1,170   $ 1,170   0      
TFTC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, loss in period (676)       778      
Loss contingency, accrual, current $ 0   0   $ 778      
Loss contingency, payments     $ 93          
Korea (South), Won | KFTC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, loss in period | ₩           ₩ 1,030    
Euro Member Countries, Euro | EC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, loss in period | €       € 997        
Taiwan, New Dollars | TFTC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, loss in period             $ 23.4  
Scenario, Forecast [Member] | TFTC [Member]                
Loss Contingencies [Line Items]                
Loss contingency, payment terms               paid in monthly installments through December 2022