Stock Compensation - Effects on Cash Flows (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-Based Payment Arrangement [Abstract]
Proceeds from common stock transactions	[1]	$ 263	$ 241	$ 377
Tax benefit realized from stock compensation		104	110	175
Taxes paid for employee shares withheld		$ 46	$ 50	$ 53

[1] Net of taxes paid for employee shares withheld of $46 million, $50 million and $53 million in 2023, 2022 and 2021, respectively.