v3.19.3
Long-Term Debt and Revolving Credit Arrangements - Interest Expense (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Debt Disclosure [Abstract]        
Contractual interest coupon $ 83 $ 59 $ 338 $ 148
Amortization of debt discount and issuance costs 2 82 80 231
8% IRR payout 0 16 26 45
Total interest expense from long-term debt $ 85 $ 157 $ 444 $ 424