Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies Operating Leases (Details)

Commitments and Contingencies Operating Leases (Details)
$ in Millions
6 Months Ended
Mar. 31, 2019
USD ($)
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]  
Description of lessee leasing arrangements, operating leases We lease certain of our land, facilities and equipment under noncancelable operating leases, with terms ranging from less than one year to 15 years and with provisions in certain leases for cost-of-living increases.
Remainder due in current fiscal year - operating lease $ 74
Due in two years - operating leases 112
Due in three years - operating leases 84
Due in four years - operating leases 54
Due in five years - operating leases 25
Thereafter - operating leases 38
Total operating leases payments due $ 387