Retirement Plans (Retirement Plans, Funded Status) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Expense for the defined contribution plans for continuing operations		$ 136	$ 100	$ 206
Foreign Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at end of period		1,100	1,200
Fair value of plan assets at end of period		1,168	1,077
Funded status at end of period		80	152
Defined Benefit Plan, Accumulated Benefit Obligation		1,000	1,100
Amounts recognized on the Consolidated Balance Sheets
Other Assets		265	45
Accrued employee compensation and benefits		7	8
Employee compensation and benefits		178	189
Pension plans in which projected benefit obligation exceeded plan assets
Projected benefit obligation		199	228
Fair value of plan assets		14	31
Pension plans in which accumulated benefit obligation exceeded plan assets
Accumulated benefit obligation		114	126
Fair value of plan assets		9	25
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)		(25)	(30)	$ (23)
Foreign Plan [Member] | Cash and equivalents
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		251	136
Foreign Plan [Member] | Equity funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1]	120	170
Foreign Plan [Member] | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]	548	468
Foreign Plan [Member] | Alternatives fund
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[3]	176	167
Foreign Plan [Member] | Real estate funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[4]	46	96
Foreign Plan [Member] | Other investments
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[5]	27	40
Foreign Plan [Member] | Level 1
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		3	5
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		0	0
Foreign Plan [Member] | Level 1 | Equity 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 | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]	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	[3]	0	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	[4]	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	[5]	3	5
Foreign Plan [Member] | Level 2
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		820	718
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		251	136
Foreign Plan [Member] | Level 2 | Equity funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1]	120	170
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	[2]	405	319
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	[3]	0	4
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	[4]	23	68
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	[5]	21	21
Foreign Plan [Member] | Level 3
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period		3	14
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 | Equity 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 | Bond funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[2]	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	[3]	0	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	[4]	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	[5]	3	14
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		342	340
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	[6]	0	0
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member] | Equity funds
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Fair value of plan assets at end of period	[1],[6]	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	[2],[6]	143	149
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	[3],[6]	176	163
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	[4],[6]	23	28
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	[5],[6]	$ 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		81.00%

[1] Strategy of equity funds is to invest in diversified funds of global common stocks.

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

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

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

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

[6] 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.