Stockholders' Equity (Narrative) (Details) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2013
Equity [Abstract]
Stock repurchase program, authorized amount (up to)			$ 8,100
Number of shares purchased (in shares)	0	0
Remaining authorized repurchase amount	$ 802