Leases Lease, Description (Details) $ in Millions	Jun. 30, 2019 USD ($)
Lessee, Lease, Description [Line Items]
Lessee, Leases Not yet Commenced, Estimate	$ 100
Operating Lease, Weighted Average Remaining Lease Term	8 years 2 months 12 days
Finance Lease, Weighted Average Remaining Lease Term	7 years
Operating Lease, Weighted Average Discount Rate, Percent	3.30%
Finance Lease, Weighted Average Discount Rate, Percent	6.60%
Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	5 years
Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee, Operating Lease, Term of Contract	10 years