Stock-Based Compensation Restricted Stock Units and Performance Deferred Stock (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	3 years
Remaining Weighted-Average Recognition Period	1 year 2 months 12 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award, equity instruments other than options, actual awards granted, percentage of performance target	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award, equity instruments other than options, actual awards granted, percentage of performance target	200.00%
RSUs and PSUs - OIP [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, RSUs and PSUs granted during the period	$ 45.30	$ 31.15
Fair Value of RSUs and PSUs vested during the period	$ 56	$ 49
Unrecognized Pretax Compensation Expense Related to RSUs and PSUs	$ 45
Remaining Weighted-Average Recognition Period	1 year 1 month 17 days
RSUs and PSUs - EIP [Domain]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Grant Date Fair Value, RSUs and PSUs granted during the period		$ 52.19
Fair Value of RSUs and PSUs vested during the period		$ 79
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity award conversion ratio	1
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU Requisite Service Period	6 months
Restricted Stock Units and Performance Deferred Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested RSUs and PSUs at beginning of period	5,883,000
RSUs and PSUs granted during the period	1,536,000
RSUs and PSUs vested during the period	(1,583,000)
RSUs and PSUs forfeited during the period	(234,000)
Nonvested RSUs and PSUs at end of period	5,602,000	5,883,000
Weighted average grant date fair value, nonvested RSUs and PSUs beginning of period	$ 31.54
Weighted Average Grant Date Fair Value, RSUs and PSUs granted during the period	45.30
Weighted Average Grant Date Fair Value, vested RSUs and PSUs during the period	35.59
Weighted Average Grant Date Fair Value, RSUs and PSUs forfeited during the period	32.99
Weighted average grant date fair value, nonvested RSUs and PSUs end of period	$ 34.11	$ 31.54
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSUs and PSUs granted during the period	343,632
Weighted Average Grant Date Fair Value, RSUs and PSUs granted during the period	$ 45.37
Minimum [Member] \| Management [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	3 years
Maximum [Member] \| Management [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	5 years
OIP [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	3 years
EIP [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	3 years
Dow [Member] \| Minimum [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	1 year
Dow [Member] \| Maximum [Member] \| Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
RSU and PSU Award Vesting Period	3 years

Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Award Conversion Ratio

No definition available.

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- Definition

Share based compensation arrangement by share based payment award, equity instruments other than options, actual awards granted, percentage of performance target

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No definition available.

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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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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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

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- Definition

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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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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