Description of Business, Accounting Policies, and Supplemental Disclosures - Calculation of Diluted Shares (Details) - shares shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Shares used in computation of basic earnings per share	10,473	10,304	10,189
Total dilutive effect of outstanding stock awards	248	188	0
Shares used in computation of diluted earnings per share	10,721	10,492	10,189