Current report filing

FAIR VALUE MEASUREMENTS (Details)

v3.19.2
FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Assets and liabilities measured at fair value on a recurring basis      
Equity Method Investment, Other than Temporary Impairment $ 591    
Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain (Loss), Net   $ 150  
Derivative, Collateral, Obligation to Return Cash 96 55  
Derivative, Collateral, Right to Reclaim Cash 4 2  
Fair Value, Inputs, Level 1 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Equity securities with changes in fair value recognized in income 1,681 212  
Debt Securities 0 1,899  
Derivatives 2 7  
Total assets 1,683 2,118  
Derivatives 14 3  
Total liabilities 14 3  
Fair Value, Inputs, Level 2 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Equity securities with changes in fair value recognized in income 186 127  
Debt Securities 5,018 5,739  
Derivatives 313 250  
Total assets 5,517 6,116  
Derivatives 221 262  
Total liabilities 221 262  
Fair Value, Inputs, Level 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Equity securities with changes in fair value recognized in income 6 3  
Debt Securities 19 169  
Derivatives 0 0  
Total assets 25 172  
Derivatives 0 0  
Total liabilities 0 0  
Other [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Equity securities with changes in fair value recognized in income 61 65  
Debt Securities 0 0  
Derivatives 0 0  
Total assets 61 65  
Derivatives 0 0  
Total liabilities 0 0  
Netting Adjustment      
Assets and liabilities measured at fair value on a recurring basis      
Equity securities with changes in fair value recognized in income 0 0  
Debt Securities 0 0  
Derivatives (261) (198)  
Total assets (261) (198)  
Derivatives (182) (147)  
Total liabilities (182) (147)  
Fair Value Measurements      
Assets and liabilities measured at fair value on a recurring basis      
Equity securities with changes in fair value recognized in income 1,934 407  
Debt Securities 5,037 7,807  
Derivatives 54 59  
Total assets 7,025 8,273  
Derivatives 53 118  
Total liabilities 53 118  
Other assets | Fair Value Measurements      
Assets and liabilities measured at fair value on a recurring basis      
Derivatives 54 59  
Accounts Payable and Accrued Liabilities | Fair Value Measurements      
Assets and liabilities measured at fair value on a recurring basis      
Derivatives 3 40  
Other liabilities | Fair Value Measurements      
Assets and liabilities measured at fair value on a recurring basis      
Derivatives 50 78  
Pension benefits      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 7,429 8,866 $ 8,371
Pension benefits | Fair Value, Inputs, Level 1, 2 and 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 7,429 8,866  
Pension benefits | Fair Value, Inputs, Level 1 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 3,333 4,433  
Pension benefits | Fair Value, Inputs, Level 2 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 1,472 1,287  
Pension benefits | Fair Value, Inputs, Level 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 2 34  
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Translation, Gains (Losses) (13) 26  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 303 303 246
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) 16 2  
Defined Benefit Plan, Plan Assets, Amount 303 303  
Derivative Liabilities      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) (5) (5)  
Pension benefits | Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 2 0  
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Translation, Gains (Losses) 0 0  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 17 14 14
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) (2) (3)  
Derivative Liabilities      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) 3 3  
Pension benefits | Fixed Income Securities [Member] | Fair Value, Inputs, Level 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 3  
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Translation, Gains (Losses) 0 0  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 16 24 19
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) (1) 1  
Derivative Liabilities      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) (7) 1  
Pension benefits | Real Estate [Member] | Fair Value, Inputs, Level 1, 2 and 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 391 598  
Pension benefits | Real Estate [Member] | Fair Value, Inputs, Level 1 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Pension benefits | Real Estate [Member] | Fair Value, Inputs, Level 2 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Pension benefits | Real Estate [Member] | Fair Value, Inputs, Level 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 0  
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Translation, Gains (Losses) 0 0  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 0 2 2
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) 0 0  
Defined Benefit Plan, Plan Assets, Amount 0 2  
Derivative Liabilities      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) (2) 0  
Pension benefits | Other Investments | Fair Value, Inputs, Level 1, 2 and 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 673 827  
Pension benefits | Other Investments | Fair Value, Inputs, Level 1 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Pension benefits | Other Investments | Fair Value, Inputs, Level 2 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Defined Benefit Plan, Plan Assets, Amount 0 0  
Pension benefits | Other Investments | Fair Value, Inputs, Level 3 [Member]      
Assets and liabilities measured at fair value on a recurring basis      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net 0 31  
Fair Value Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Foreign Translation, Gains (Losses) (13) 26  
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value 270 263 $ 211
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) 19 4  
Defined Benefit Plan, Plan Assets, Amount 270 263  
Derivative Liabilities      
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements) $ 1 $ (9)