Employee Benefit Plans (Restricted Stock Unit and Performance Share Program Activity) (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Stock Units R S U [Member] \| Segment Discontinued Operations [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Outstanding at December 31	970,099
Stock Units, Granted	797,704
Stock Units, Forfeited / Cancelled	(1,948)
Stock Units, Issued	(149,488)
Outstanding at December 31	1,616,367	970,099
Stock Units, Not Vested at End of Year	695,958
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31	$ 47.78
Weighted-Average Grant-Date Fair Value, Granted	46.43	$ 51.46	$ 63.58
Weighted-Average Grant-Date Fair Value, Forfeited / Cancelled	27.80
Weighted-Average Grant-Date Fair Value, Issued	46.80
Outstanding at December 31	47.24	$ 47.78
Weighted-Average Grant-Date Not Vested, ending of year	$ 45.87
Total Fair Value, Issued	$ 8,000,000	$ 6,000,000	$ 11,000,000
Employee Benefit Plans Additional Textual [Abstract]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	$ 20,000,000
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition 1	1 year 5 months 15 days
Total Fair Value, Issued	$ 8,000,000	$ 6,000,000	$ 11,000,000
R S U Stock Settled Share [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Outstanding at December 31	6,431,985
Stock Units, Granted	4,590,103
Stock Units, Forfeited / Cancelled	(566,047)
Stock Units, Issued	(2,810,730)
Outstanding at December 31	7,645,311	6,431,985
Stock Units, Not Vested at End of Year	5,509,133
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31	$ 58.94
Weighted-Average Grant-Date Fair Value, Granted	46.56	$ 57.40	$ 67.77
Weighted-Average Grant-Date Fair Value, Forfeited / Cancelled	48.59
Weighted-Average Grant-Date Fair Value, Issued	54.74
Outstanding at December 31	53.81	$ 58.94
Weighted-Average Grant-Date Not Vested, ending of year	$ 53.81
Total Fair Value, Issued	$ 144,000,000	$ 143,000,000	$ 225,000,000
Employee Benefit Plans Additional Textual [Abstract]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	$ 126,000,000
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition 1	1 year 8 months 1 day
Total Fair Value, Issued	$ 144,000,000	$ 143,000,000	$ 225,000,000
R S U Cash Settled [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Outstanding at December 31	614,615
Stock Units, Granted	11,186
Stock Units, Forfeited / Cancelled	(2,927)
Stock Units, Issued	(396,398)
Outstanding at December 31	226,476	614,615
Stock Units, Not Vested at End of Year	59,443
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31	$ 39.95
Weighted-Average Grant-Date Fair Value, Granted	57.19	$ 41.59	$ 68.20
Weighted-Average Grant-Date Fair Value, Forfeited / Cancelled	51.43
Weighted-Average Grant-Date Fair Value, Issued	50.75
Outstanding at December 31	72.18	$ 39.95
Weighted-Average Grant-Date Not Vested, ending of year	$ 72.18
Total Fair Value, Issued	$ 20,000,000		$ 6,000,000
Employee Benefit Plans Additional Textual [Abstract]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	0
Total Fair Value, Issued	$ 20,000,000		$ 6,000,000
P S U Stock Settled [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Outstanding at December 31	1,736,728
Stock Units, Issued	(287,881)
Outstanding at December 31	1,448,847	1,736,728
Stock Units, Not Vested at End of Year	3,191
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31	$ 50.56
Weighted-Average Grant-Date Fair Value, Granted		$ 58.61	$ 68.90
Weighted-Average Grant-Date Fair Value, Issued	49.91
Outstanding at December 31	50.69	$ 50.56
Weighted-Average Grant-Date Not Vested, ending of year	$ 48.61
Total Fair Value, Issued	$ 18,000,000	$ 13,000,000	$ 25,000,000
Employee Benefit Plans Additional Textual [Abstract]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	0
Total Fair Value, Issued	$ 18,000,000	$ 13,000,000	$ 25,000,000
P S U Cash Settled Program [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested [Roll Forward]
Outstanding at December 31	124,529
Stock Units, Granted	1,073,228
Stock Units, Forfeited / Cancelled	(1,080,078)
Outstanding at December 31	117,679	124,529
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding at December 31	$ 39.95
Weighted-Average Grant-Date Fair Value, Granted	46.65	$ 58.61	$ 68.90
Weighted-Average Grant-Date Fair Value, Forfeited / Cancelled	48.13
Outstanding at December 31	$ 72.18	$ 39.95
Total Fair Value, Issued	$ 52,000,000	$ 116,000,000	$ 171,000,000
Employee Benefit Plans Additional Textual [Abstract]
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized	0
Total Fair Value, Issued	$ 52,000,000	$ 116,000,000	$ 171,000,000

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Share based compensation arrangement by share based payment award equity instrument other than options non vested number of shares.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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-Publisher FASB
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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