Income Taxes - Quarter information (Detail) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
---|---|---|---|---|---|
Jun. 30, 2021 |
Jun. 30, 2020 |
Mar. 31, 2020 |
Jun. 30, 2021 |
Jun. 30, 2020 |
|
Income Taxes | |||||
Effective tax rate of income (loss) before income taxes | 22.90% | 22.20% | 22.80% | 19.50% | |
Excess tax benefits associated with equity-based compensation | $ 2 | $ 2 | $ 11 | $ 23 | |
Equity in net losses of unconsolidated entities | 11 | 14 | 20 | 40 | |
Increase (decrease) to accruals and related deferred taxes | $ 6 | ||||
Tax audit increase (decrease) | (1) | (5) | |||
Investments Qualifying for Federal Tax Credits [Member] | |||||
Income Taxes | |||||
Equity in net losses of unconsolidated entities | 12 | 17 | 21 | 43 | |
Income tax (expense) benefit, including tax credits, from equity method investment | 16 | 17 | 32 | 41 | |
Interest expense | $ 3 | $ 3 | $ 5 | 6 | |
Refined Coal Facility [Member] | |||||
Income Taxes | |||||
Equity method investments impairment charges | $ 7 | $ 7 |
X | ||||||||||
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Amount of tax benefit for recognition of expense of award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
X | ||||||||||
- Definition The increase (decrease) during the period in the amount due for taxes based on the reporting entity's earnings or attributable to the entity's income earning process (business presence) within a given jurisdiction. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Income tax expense (benefit), including federal tax credits, from equity method investment. No definition available.
|
X | ||||||||||
- Definition Income Taxes [Line Items] No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|