XML 149 R108.htm IDEA: XBRL DOCUMENT v3.21.1
Fair Value Measurements (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset [1] $ (18)   $ (21)  
Assets, fair value disclosure 8,897   9,918  
Derivative liability, fair value, gross asset and right to reclaim cash, offset [1] 39   56  
Derivative liabilities (105)   (121)  
Cash collateral, net receivable, offset against derivative positions 21   35  
Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, fair value disclosure 6,449   7,562  
Derivative liabilities (3)   (6)  
Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, fair value disclosure 2,265   2,180  
Derivative liabilities (105)   (152)  
Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Assets, fair value disclosure 201   197  
Derivative liabilities (36)   (19)  
Mortgage Loans on Real Estate [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Mortgages Held-for-sale, Fair Value Disclosure 2,065   2,001  
Mortgage Loans on Real Estate [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Mortgages Held-for-sale, Fair Value Disclosure 0   0  
Mortgage Loans on Real Estate [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Mortgages Held-for-sale, Fair Value Disclosure 2,065   2,001  
Mortgage Loans on Real Estate [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Mortgages Held-for-sale, Fair Value Disclosure 0   0  
Money market mutual funds [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities [2] 807   873  
Money market mutual funds [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities [2] 807   873  
Money market mutual funds [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities [2] 0   0  
Money market mutual funds [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities [2] 0   0  
United States government obligations [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 210   200  
United States government obligations [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 210   200  
United States government obligations [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
United States government obligations [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
International government obligations [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 5   5  
International government obligations [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
International government obligations [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 5   5  
International government obligations [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
Corporate obligations [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 71   73  
Corporate obligations [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
Corporate obligations [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 71   73  
Corporate obligations [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
Municipal obligations [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 2   2  
Municipal obligations [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
Municipal obligations [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 2   2  
Municipal obligations [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 5   6  
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 5   6  
US Government-sponsored Enterprises Debt Securities [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt Securities, Available-for-sale 0   0  
United States companies [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 395   381  
United States companies [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 395   381  
United States companies [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 0   0  
United States companies [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 0   0  
International companies [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 4,780   5,906  
International companies [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 4,780   5,906  
International companies [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 0   0  
International companies [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 0   0  
Investment funds [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 256   201  
Investment funds [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 256   201  
Investment funds [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 0   0  
Investment funds [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Equity securities 0   0  
Commodity derivative [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset [1] (18)   (21)  
Derivative assets 209   188  
Derivative liability, fair value, gross asset and right to reclaim cash, offset [1] 39   56  
Derivative liabilities (81)   (54)  
Commodity derivative [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 1   1  
Derivative liability, fair value, gross liability including not subject to master netting arrangement 0   (1)  
Commodity derivative [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 72   73  
Derivative liability, fair value, gross liability including not subject to master netting arrangement (90)   (90)  
Commodity derivative [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 154   135  
Derivative liability, fair value, gross liability including not subject to master netting arrangement (30)   (19)  
Foreign Exchange Contract | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative assets 12   20  
Derivative liabilities (1)   (2)  
Foreign Exchange Contract | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 12   20  
Derivative liability, fair value, gross liability including not subject to master netting arrangement (1)   (2)  
Interest Rate Contract [Member] | Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative assets 80   62  
Derivative liabilities (23)   (65)  
Interest Rate Contract [Member] | Recurring [Member] | Level 1 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 0   0  
Derivative liability, fair value, gross liability including not subject to master netting arrangement (3)   (5)  
Interest Rate Contract [Member] | Recurring [Member] | Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 33   0  
Derivative liability, fair value, gross liability including not subject to master netting arrangement (14)   (60)  
Interest Rate Contract [Member] | Recurring [Member] | Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative asset, fair value, gross asset including not subject to master netting arrangement 47   62  
Derivative liability, fair value, gross liability including not subject to master netting arrangement (6)   0  
Commodity derivative [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset (Liability), Net, Value 124 $ 52 116 $ 97
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings 6 3    
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net (16) 40    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases   2    
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements 1 4    
Interest Rate Lock Commitments [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair Value Measurement With Unobservable Inputs Reconciliation, Recurring Basis, Asset (Liability), Net, Value 41 45 $ 62 $ 14
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings 21 (31)    
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net 0 0    
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases   0    
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements $ 0 $ 0    
[1] Represents netting under master netting arrangements and a net cash collateral receivable of $17 million and $24 million as of March 31, 2021 and December 31, 2020, respectively.
[2] Amounts are included in cash and cash equivalents, other current assets and other assets on the Consolidated Balance Sheets. The fair value of these money market mutual funds approximates cost.