Relationship with Former Parent and Related Entities - Summary of Amount Due to and from Related Parties (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Related Party Transactions [Abstract]
Related party receivables	$ 5	$ 9
Related party payables	1	2
Related party short-term debt	0	16
Related party long-term debt	$ 0	$ 115

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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+ Details

- Definition

Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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+ Details