Leases (Future Minimum Payments Prior to Adoption) (Details) $ in Millions	Dec. 31, 2018 USD ($)
Operating (a)
2019	$ 305
2020	309
2021	282
2022	247
2023	211
2024 and thereafter	1,228
Total minimum payments	2,582
Finance
2019	29
2020	20
2021	15
2022	7
2023	2
2024 and thereafter	2
Total minimum payments	75
Less amounts representing interest	6
Present value of minimum payments	$ 69

Amount of minimum lease payments for capital leases.

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737