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Fair value by balance sheet grouping table (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments

The carrying amount and fair value of our total debt, including short-term borrowings and current maturities of long-term debt, is as follows:

			June 30, 2021															December 31, 2020
Millions of dollars			Level 1			Level 2			Total fair value			Carrying value						Level 1			Level 2			Total fair value			Carrying value
Total debt			$	11,096		$	531		$	11,627		$	9,639					$	10,856		$	700		$	11,556		$	9,827

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- Definition

Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements.

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