XML 56 R43.htm IDEA: XBRL DOCUMENT v3.19.1
Long-Term Debt (Commercial Paper Programs) (Details)
3 Months Ended
Mar. 31, 2019
USD ($)
Short-term Debt [Line Items]  
Net repayments of commercial paper $ 673,000,000
Commercial Paper [Member]  
Short-term Debt [Line Items]  
Commercial paper outstanding $ 0