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Share-Based Compensation Plans (Details Textual) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Nov. 18, 2022	Oct. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation	$ 37	$ 33	$ 26
Proceeds from exercise of employee stock options	8	19	20
Tax benefit from the exercise of stock options	$ 3	$ 6	$ 13
Shares awarded	323
Shares awarded	35
Shares outstanding	1,935	1,827
Non-vested options outstanding	600	700	700
Weighted average grant date fair value	$ 87.62	$ 84.66	$ 74.00
Aggregate intrinsic value of outstanding stock options	$ 83
Aggregate intrinsic value of exercisable stock options	70
Total intrinsic value of options exercised	4	$ 27	$ 20
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation expense	$ 7
Weighted average period	1 year 8 months 12 days
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation expense	$ 26
Weighted average period	1 year 9 months 18 days
Shares awarded	349
Performance Based Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized compensation expense	$ 13
Weighted average period	2 years 1 month 6 days
Requisite service periods	3 years
Target payout percentage	100.00%
2011 Omnibus Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares initially available for awards					18,000
Additional shares registered for issuance				3,200
Shares available for future grant	7,000