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General - Statement of Financial Position (Details) - USD ($) | Mar. 31, 2019 | Jan. 01, 2019 | Dec. 31, 2018 | Mar. 31, 2018
--- | --- | --- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred income taxes | $ 817,000,000 |  | $ 425,000,000 |
Other liabilities and accrued expenses | 8,977,000,000 |  | 7,737,000,000 |
Liabilities | 92,416,000,000 |  | 90,937,000,000 |
Retained income | 45,148,000,000 |  | 44,033,000,000 |
Unrealized foreign currency translation adjustments | (44,000,000) |  | (49,000,000) |
Unamortized pension and other postretirement prior service cost | 157,000,000 |  | 169,000,000 |
Total accumulated other comprehensive income (“AOCI”) | 1,085,000,000 |  | 118,000,000 |
Stockholders' Equity Attributable to Parent | 23,418,000,000 |  | 21,312,000,000 | $ 23,273,000,000
Previously reported |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred income taxes | 822,000,000 |  |  |
Other liabilities and accrued expenses | 8,953,000,000 |  |  |
Liabilities | 92,397,000,000 |  |  |
Retained income | 46,818,000,000 |  | 45,708,000,000 |
Unrealized foreign currency translation adjustments | (57,000,000) |  | (64,000,000) |
Unamortized pension and other postretirement prior service cost | (1,481,000,000) |  | (1,491,000,000) |
Total accumulated other comprehensive income (“AOCI”) | (566,000,000) |  | (1,557,000,000) |
Stockholders' Equity Attributable to Parent | 23,437,000,000 |  |  | 23,277,000,000
Impact of change | Adjustment |  |  |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |  |  |
Deferred income taxes | (5,000,000) |  |  |
Other liabilities and accrued expenses | 24,000,000 |  |  |
Liabilities | 19,000,000 |  |  |
Retained income | (1,670,000,000) |  | (1,675,000,000) |
Unrealized foreign currency translation adjustments | 13,000,000 |  | 15,000,000 |
Unamortized pension and other postretirement prior service cost | (1,638,000,000) |  | 1,660,000,000 |
Total accumulated other comprehensive income (“AOCI”) | 1,651,000,000 |  | $ 1,675,000,000 |
Stockholders' Equity Attributable to Parent | $ (19,000,000) | $ 0 |  | $ (4,000,000)

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