Fair Value Measurements - Fair Value of Other Financial Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Fair value disclosures
Long-term debt	$ 3,105	$ 3,125
Current maturities	(124)	0
Long-term debt, excluding current maturities	2,981	3,125
Carrying Amount
Fair value disclosures
Long-term debt	3,105	3,125
Current maturities	(124)	0
Long-term debt, excluding current maturities	2,981	3,125
Estimated Fair Value
Fair value disclosures
Long-term debt	2,887	3,163
Current maturities	(127)	0
Long-term debt, excluding current maturities	$ 2,760	$ 3,163

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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