Leases (Lease Maturities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Operating Leases
2020	$ 65
2021	50
2022	37
2023	29
2024	21
Thereafter	62
Total lease payments	264
Less: Imputed interest	(21)
Total	$ 243
Operating Leases
2019		$ 76
2020		61
2021		43
2022		33
2023		22
Thereafter		64
Total lease payments		$ 299

Amount of lessee's undiscounted obligation for lease payments for operating lease.

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