Other Non-Current Assets (Schedule of Other Non-Current Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investments, All Other Investments [Abstract]
Pension benefits	$ 491	$ 360
Deferred taxes	278	272
Fair value of derivatives	54	20
Investments	20	19
Debt issuance costs	15	15
Other	109	117
Other non-current assets	$ 967	$ 803

Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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