Leases (Unaudited) Lease Other Supplemental Information (Details 3) $ in Millions	9 Months Ended
	Sep. 30, 2019 USD ($) Rate
Leases Other Supplemental Information [Abstract]
Payments on operating leases	$ 223
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 397
Weighted-average remaining lease term—operating leases (in years)	11 years 8 months 12 days
Weighted-average discount rate—operating leases | Rate	3.80%