XML 131 R114.htm IDEA: XBRL DOCUMENT v3.8.0.1
Commitments (Future Purchase Commitments) (Details)
$ in Millions
Sep. 30, 2017
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2018 $ 1,750
2019 374
2020 272
2021 118
2022 77
2023 and beyond 110
Total $ 2,701