Stock Compensation Plans Stock Awards (Details 2) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation by Share-based Payment Award
Stock plans, vesting period	3 years
Stock awards, outstanding, weighted average remaining contractual terms	1 year 4 months 24 days	1 year 4 months 24 days	1 year 4 months 24 days	10 months 24 days
Stock issued, settlement of fully vested stock awards, fair value grant date	$ 93	$ 103	$ 118
Stock Award Activity (Table)
Stock awards - outstanding at period start	580	603	701
Stock awards - granted	238	304	262
Stock awards - vested	226	269	296
Stock awards - forfeited	31	58	64
Stock awards - outstanding at period end	561	580	603	701
Stock Awards, Weighted Average Grant Date Fair Value [Table]
Weighted-average grant date fair value - outstanding at period start	$ 314	$ 311	$ 278
Weighted-average grant date fair value - granted	397	296	350
Weighted-average grant date fair value - vested	327	286	305
Weighted-average grant date fair value - forfeited	320	318	303
Weighted-average grant date fair value - outstanding at period end	$ 344	$ 314	$ 311	$ 278
Amended 2011 Plan [Domain]
Share-based Compensation by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	5,100
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized	2,400
2011 Long-Term Incentive Stock Plan [Member]
Share-based Compensation by Share-based Payment Award
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	4,600