XML 137 R100.htm IDEA: XBRL DOCUMENT v3.20.2
Fair Value Measurements (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
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] $ (35)   $ (35)     $ (24)    
Assets, fair value disclosure 8,289   8,289     3,897    
Derivative liability, fair value, gross asset and right to reclaim cash, offset [1] 69   69     103    
Derivative liabilities (109)   (109)     (76)    
Cash collateral, net receivable, offset against derivative positions 34   34     79    
Recurring [Member] | Level 1 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Assets, fair value disclosure 5,763   5,763     2,649    
Derivative liabilities (5)   (5)     (6)    
Recurring [Member] | Level 2 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Assets, fair value disclosure 2,366   2,366     1,150    
Derivative liabilities (162)   (162)     (162)    
Recurring [Member] | Level 3 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Assets, fair value disclosure 195   195     122    
Derivative liabilities (11)   (11)     (11)    
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 2,178   2,178     1,039    
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     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 2,178   2,178     1,039    
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     0    
Money market mutual funds [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI [2] 1,493   1,493     824    
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, FV-NI [2] 1,493   1,493     824    
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, FV-NI [2] 0   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, FV-NI [2] 0   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 186   186     189    
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 186   186     189    
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     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     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     4    
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     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     4    
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     0    
Corporate obligations [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Debt Securities, Available-for-sale 75   75     58    
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     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 75   75     58    
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     0    
Municipal obligations [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Debt Securities, Available-for-sale 4   4     1    
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     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 4   4     1    
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     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   5     1    
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     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   5     1    
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     0    
United States companies [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 347   347     336    
United States companies [Member] | Recurring [Member] | Level 1 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 347   347     336    
United States companies [Member] | Recurring [Member] | Level 2 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 0   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, FV-NI 0   0     0    
International companies [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 3,533   3,533     1,131    
International companies [Member] | Recurring [Member] | Level 1 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 3,533   3,533     1,131    
International companies [Member] | Recurring [Member] | Level 2 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 0   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, FV-NI 0   0     0    
Investment funds [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 202   202     169    
Investment funds [Member] | Recurring [Member] | Level 1 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 202   202     169    
Investment funds [Member] | Recurring [Member] | Level 2 [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Equity Securities, FV-NI 0   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, FV-NI 0   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] (35)   (35)     (24)    
Derivative assets 172   172     129    
Derivative liability, fair value, gross asset and right to reclaim cash, offset [1] 69   69     103    
Derivative liabilities (48)   (48)     (55)    
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 2   2     0    
Derivative liability, fair value, gross liability including not subject to master netting arrangement 0   0     (4)    
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 98   98     45    
Derivative liability, fair value, gross liability including not subject to master netting arrangement (106)   (106)     (143)    
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 107   107     108    
Derivative liability, fair value, gross liability including not subject to master netting arrangement (11)   (11)     (11)    
Interest Rate Contract [Member] | Recurring [Member]                
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                
Derivative assets 89   89     16    
Derivative liabilities (61)   (61)     (21)    
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     0    
Derivative liability, fair value, gross liability including not subject to master netting arrangement (5)   (5)     (2)    
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 1   1     2    
Derivative liability, fair value, gross liability including not subject to master netting arrangement (56)   (56)     (19)    
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 88   88     14    
Derivative liability, fair value, gross liability including not subject to master netting arrangement 0   0     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 96 $ 78 96 $ 78 $ 44 97 $ 86 $ 99
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings 7 (1) 11 (6)        
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net (20) 17 36 40        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 1 0 4 4        
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements (38) (8) (42) (10)        
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 88 20 88 20 $ 78 $ 14 $ 23 $ 10
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings (243) (158) (579) (305)        
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Gain (Loss) Included In Regulatory Assets and Liabilities, Net 0 0 0 0        
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases 0 0 0 0        
Fair Value, Measurements With Unobservable Inputs Reconciliation, Recurring Basis, Assets and Liability, Net, Settlements $ 233 $ 161 $ 505 $ 295        
[1] Represents netting under master netting arrangements and a net cash collateral receivable of $25 million and $47 million as of September 30, 2020 and December 31, 2019, 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.