Note 9 - Accumulated Other Comprehensive Income/Loss - Schedule of Reclassification (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2024		Sep. 30, 2023		Sep. 30, 2024		Sep. 30, 2023
Balance		$ 16,489		$ 13,194		$ 14,788		$ 12,163
Total other comprehensive income/(loss)		(86)	[1]	20	[1]	(78)	[2]	85	[2]
Balance		16,584		14,004		16,584		14,004
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Balance		(483)		(373)		(484)		(378)
Other comprehensive income/(loss) before reclassifications		0		(1)		2		5
Amounts reclassified from accumulated other comprehensive income/(loss) [b]	[3]	0		(1)		(1)		(2)
Total other comprehensive income/(loss)		0		(2)		1		3
Balance		(483)		(375)		(483)		(375)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance		(139)		(160)		(146)		(204)
Other comprehensive income/(loss) before reclassifications		(86)		22		(79)		66
Amounts reclassified from accumulated other comprehensive income/(loss) [b]	[3]	0		0		0		0
Total other comprehensive income/(loss)		(86)		22		(79)		66
Balance		(225)		(138)		(225)		(138)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	[4]	16		16		16		0
Other comprehensive income/(loss) before reclassifications	[4]	0		0		0		16
Amounts reclassified from accumulated other comprehensive income/(loss) [b]	[3],[4]	0		0		0		0
Total other comprehensive income/(loss)		0	[4]	0	[4]	0		16
Balance	[4]	16		16		16		16
AOCI Attributable to Parent [Member]
Balance	[5]	(606)		(517)		(614)		(582)
Other comprehensive income/(loss) before reclassifications		(86)		21		(77)		87
Amounts reclassified from accumulated other comprehensive income/(loss) [b]	[3]	0		(1)		(1)		(2)
Total other comprehensive income/(loss)	[5]	(86)		20		(78)		85
Balance	[5]	$ (692)		$ (497)		$ (692)		$ (497)

[1] Net of deferred taxes of $1 million and ($1) million during the three months ended September 30, 2024 and 2023, respectively.

[2] Net of deferred taxes of $1 million and ($4) million during the nine months ended September 30, 2024 and 2023, respectively

[3] The accumulated other comprehensive income/loss reclassification components are 1) prior service cost/credit and 2) net actuarial loss, which are both included in the computation of net periodic pension benefit/cost. See Note 5 Retirement Plans for additional details.

[4] Related to interest rate swaps from equity method investments.

[5] AOCI = accumulated other comprehensive income/loss (Note 9)