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Note 8 - Earnings Per Share - Schedule of Reconciliation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net income	$ 6,379	$ 6,998	$ 6,523
Weighted-average number of shares outstanding:
Basic (in shares)	609.2	622.7	653.8
Diluted (in shares)	610.2	624.0	655.4
Earnings per share - basic (in dollars per share)	$ 10.47	$ 11.24	$ 9.98
Earnings per share - diluted (in dollars per share)	$ 10.45	$ 11.21	$ 9.95
Share-Based Payment Arrangement, Option [Member]
Weighted-average number of shares outstanding:
Dilutive effect of share based payment awards (in shares)	0.4	0.6	0.8
Retention Awards [Member]
Weighted-average number of shares outstanding:
Dilutive effect of share based payment awards (in shares)	0.6	0.7	0.8

X

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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