Employee Benefit Plans (Fair values of pension plan assets and Textuals) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Payables To Broker Dealers And Clearing Organizations	$ 5	$ 7
Insurance Contract Rights And Obligations Fair Value Option [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value Of Participating Interest In Annuity Contract	83	94
U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	68	180
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1,375	1,296
Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1,580	1,675
Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	4,808	4,787
Defined Benefit Plan Equity Securities Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	8	8
Defined Benefit Plan Equity Securities Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Defined Benefit Plan Equity Securities Non Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	42	99
Defined Benefit Plan Equity Securities Non Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Mutual Funds -Equity [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	17	72
Mutual Funds -Equity [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	639	619
Common Collective Trust Equity Securities [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	394	678
Common Collective Trust Equity Securities [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	417	372
Defined Benefit Plan Debt Security [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1	1
Defined Benefit Plan Debt Security [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Mutual Fund [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Mutual Fund [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	511	455
Defined Benefit Plan Common Collective Trust [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1,073	730
Defined Benefit Plan Common Collective Trust [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	3,015	3,007
Defined Benefit Plan Cash And Cash Equivalents [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Defined Benefit Plan Cash And Cash Equivalents [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	68	74
Defined Benefit Plan Cash And Cash Equivalents [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	9	8
Defined Benefit Plan Cash And Cash Equivalents [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Defined Benefit Plan Derivative [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		0
Defined Benefit Plan Derivative [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		6
Defined Benefit Plan Real Estate [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Defined Benefit Plan Real Estate [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	157	142
Defined Benefit Plan Real Estate [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	36	79
Defined Benefit Plan Real Estate [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1	112
Fair Value, Inputs, Level 1 [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	62	171
Fair Value, Inputs, Level 1 [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	815	770
Fair Value, Inputs, Level 1 [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	62	171
Fair Value, Inputs, Level 1 [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	815	770
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Equity Securities Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	3	0
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Equity Securities Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Equity Securities Non Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	42	99
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Equity Securities Non Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Mutual Funds -Equity [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	17	72
Fair Value, Inputs, Level 1 [Member] | Mutual Funds -Equity [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	236	235
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Debt Security [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Debt Security [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Mutual Fund [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Mutual Fund [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	511	455
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Cash And Cash Equivalents [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Cash And Cash Equivalents [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	68	74
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Derivative [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		0
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Derivative [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		6
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Real Estate [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan Real Estate [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1	4
Fair Value, Inputs, Level 2 [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	403	384
Fair Value, Inputs, Level 2 [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1	4
Fair Value, Inputs, Level 2 [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	403	384
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Equity Securities Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	3
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Equity Securities Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Equity Securities Non Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Equity Securities Non Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Funds -Equity [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Funds -Equity [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	403	384
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Debt Security [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	1	1
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Debt Security [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Fund [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Mutual Fund [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Cash And Cash Equivalents [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Cash And Cash Equivalents [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Derivative [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Derivative [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Real Estate [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan Real Estate [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	5	5
Fair Value, Inputs, Level 3 [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	157	142
Fair Value, Inputs, Level 3 [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	5	5
Fair Value, Inputs, Level 3 [Member] | Portion At Other Than Fair Value, Fair Value Disclosure [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	157	142
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Equity Securities Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	5	5
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Equity Securities Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Equity Securities Non Us [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Equity Securities Non Us [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds -Equity [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Funds -Equity [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Debt Security [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Debt Security [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Fund [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Mutual Fund [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Cash And Cash Equivalents [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Cash And Cash Equivalents [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Derivative [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Derivative [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets		0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Real Estate [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	0	0
Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan Real Estate [Member] | Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Selected Plan Assets	$ 157	$ 142