Share-based Payments, RSU's (Details 3) shares in Millions	12 Months Ended
Dec. 31, 2021 $ / shares shares
Restricted Stock Units R S U
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Shares (in millions)
Number of stock units outstanding at beginning of period (shares) \| shares	2.5
Granted (in shares) \| shares	0.7
Issued and canceled (shares) \| shares	(0.8)
Number of stock units outstanding at end of period (shares) \| shares	2.4
Weighted Average Grant Date Fair Value
Weighted-average grant date fair value per share - stock unit awards outstanding, beginning of period (in usd per share) \| $ / shares	$ 21.48
Granted (in usd per share) \| $ / shares	29.88
Issued and canceled (in usd per share) \| $ / shares	26.15
Weighted-average grant date fair value per share - stock unit awards outstanding, end of period (in usd per share) \| $ / shares	$ 22.44
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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