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Note 14 - Debt (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Debt [Table Text Block]

Millions		*2022*				2021
Notes and debentures, 2.2% to 7.1% due through February 14, 2072		$	33,658			$	29,508
Equipment obligations, 2.6% to 6.2% due through January 2, 2031			809				848
Finance leases, 3.1% to 8.0% due through December 10, 2028			234				336
Commercial paper, 3.3% to 4.7% due through January 17, 2023			200				400
Receivables Facility (Note 10)			100				300
Term loans - floating rate, due August 31, 2023			100				100
Unamortized discount and deferred issuance costs			(1,775	)			(1,763	)
Total debt			33,326				29,729
Less: current portion			(1,678	)			(2,166	)
Total long-term debt		$	31,648			$	27,563

Schedule of Maturities of Long-Term Debt [Table Text Block]

Millions
2023		$	1,681
2024			1,434
2025			1,528
2026			1,015
2027			1,285
Thereafter			28,158
Total principal			35,101
Unamortized discount and deferred issuance costs			(1,775	)
Total debt		$	33,326

Unsecured Fixed Rate Debt Securities Issued Under Current Shelf Registration [Table Text Block]

Date	Description of Securities
February 14, 2022	$1.25 billion of 2.800% Notes due February 14, 2032
	$0.50 billion of 3.375% Notes due February 14, 2042
	$1.25 billion of 3.500% Notes due February 14, 2053
	$0.50 billion of 3.850% Notes due February 14, 2072
September 9, 2022	$0.90 billion of 4.500% Notes due January 20, 2033
	$0.60 billion of 4.950% Notes due September 9, 2052
	$0.40 billion of 5.150% Notes due January 20, 2063