Retirement Plans (Retirement Plans, Funded Status) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at end of period		$ 745	$ 669
Fair value of plan assets at end of period		622	665
Funded status at end of period		123	4
Defined Benefit Plan, Accumulated Benefit Obligation		672	601
Amounts recognized on the Consolidated Balance Sheets
Other Assets		39	151
Accrued employee compensation and benefits		10	7
Employee compensation and benefits		154	145
Pension plans in which projected benefit obligation exceeded plan assets
Projected benefit obligation		179	159
Fair value of plan assets		15	7
Pension plans in which accumulated benefit obligation exceeded plan assets
Accumulated benefit obligation		106	91
Fair value of plan assets		15	7
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)		(32)	(14)	$ (25)
Foreign Plan [Member] | Cash and equivalents
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		263	126
Foreign Plan [Member] | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1]	315	342
Foreign Plan [Member] | Alternatives fund
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]		145
Foreign Plan [Member] | Real estate funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[3]	30	31
Foreign Plan [Member] | Other investments
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[4]	14	21
Foreign Plan [Member] | Level 1
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		30	27
Foreign Plan [Member] | Level 1 | Cash and equivalents
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		29	26
Foreign Plan [Member] | Level 1 | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1]	0	0
Foreign Plan [Member] | Level 1 | Alternatives fund
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]		0
Foreign Plan [Member] | Level 1 | Real estate funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[3]	0	0
Foreign Plan [Member] | Level 1 | Other investments
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[4]	1	1
Foreign Plan [Member] | Level 2
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		404	360
Foreign Plan [Member] | Level 2 | Cash and equivalents
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		234	100
Foreign Plan [Member] | Level 2 | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1]	159	242
Foreign Plan [Member] | Level 2 | Alternatives fund
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]		0
Foreign Plan [Member] | Level 2 | Real estate funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[3]	0	0
Foreign Plan [Member] | Level 2 | Other investments
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[4]	11	18
Foreign Plan [Member] | Level 3
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		2	2
Foreign Plan [Member] | Level 3 | Cash and equivalents
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		0	0
Foreign Plan [Member] | Level 3 | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1]	0	0
Foreign Plan [Member] | Level 3 | Alternatives fund
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]		0
Foreign Plan [Member] | Level 3 | Real estate funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[3]	0	0
Foreign Plan [Member] | Level 3 | Other investments
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[4]	2	2
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		186	276
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Cash and equivalents
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[5]	0	0
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1],[5]	156	100
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Alternatives fund
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2],[5]		145
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Real estate funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[3],[5]	30	31
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Other investments
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[4],[5]	$ 0	0
United Kingdom Pension Plan [Member]
Pension plans in which accumulated benefit obligation exceeded plan assets
United Kingdom pension plan percentage of international pension plans' projected benefit obligations		75.00%
Expense for the defined contribution plans for continuing operations		$ 181	$ 160	$ 136

[1] Strategy of bond funds is to invest in diversified funds of fixed income securities of varying geographies and credit quality.

[2] Strategy of alternative funds is to invest in a fund of diversifying investments, including but not limited to reinsurance, commodities, and currencies.

[3] Strategy of real estate funds is to invest in diversified funds of real estate investment trusts and private real estate.

[4] Other investments primarily include investments in insurance contracts, balanced funds, and government bonds.

[5] Represents investments measured at fair value using the Net Asset Value (NAV) per share practical expedient and thus has not been categorized in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the total value of our international pension plans assets.