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Financing Arrangements - Total debt (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Financing Arrangements
Total debt	$ 1,848	$ 2,100

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant