Leases (Summary of Operating Lease Liabilities) (Details) $ in Millions	Sep. 30, 2019 USD ($)
Fiscal Year
2020	$ 119
2021	123
2022	91
2023	86
2024	82
Thereafter	194
Total lease payments	695	[1]
Less: imputed interest	(90)
Present value of operating lease liabilities	$ 605

[1] In addition to the total lease payments presented above, the Company has a lease for an office facility with lease payments of approximately $55 million that has not yet commenced as of September 30, 2019.