Leases Liability Maturity (Details) $ in Millions	Jun. 30, 2019 USD ($)
Leases [Abstract]
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year	$ 116
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	200
Lessee, Operating Lease, Liability, Payments, Due Year Two	167
Lessee, Operating Lease, Liability, Payments, Due Year Three	138
Lessee, Operating Lease, Liability, Payments, Due Year Four	101
Lessee, Operating Lease, Liability, Payments, Due Year Five	58
Lessee, Operating Lease, Liability, Payments, Due after Year Five	260
Lessee, Operating Lease, Liability, Payments, Due	1,040
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	183
Operating Lease, Liability	$ 857