XML 131 R95.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements - Change in Balance Sheet Carrying Value Associated with Level 3 Financial Instruments Carried at Fair Value on Recurring Basis (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Interest Rate Swaps [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]      
Balance, beginning of period $ (73) $ (40) $ (90)
Total gains/(losses) (realized and unrealized):      
Included in earnings 9 (5) 69
Included in other comprehensive income         
Settlements (23) (28) (19)
Transfers in and/or out of level 3         
Balance, end of period (87) (73) (40)
Change in unrealized gains/(losses) relating to instruments still held at the reporting date (2) (31) 6
Cross-Currency Interest Rate Swaps [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]      
Balance, beginning of period 1,053 1,021 1,427
Total gains/(losses) (realized and unrealized):      
Included in earnings 63 159 (176)
Included in other comprehensive income         
Settlements (109) (127) (230)
Transfers in and/or out of level 3         
Balance, end of period 1,007 1,053 1,021
Change in unrealized gains/(losses) relating to instruments still held at the reporting date 116 55 (408)
Other [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]      
Balance, beginning of period 4 1 26
Total gains/(losses) (realized and unrealized):      
Included in earnings (22) 3 33
Included in other comprehensive income         
Settlements (3)   (58)
Transfers in and/or out of level 3         
Balance, end of period (21) 4 1
Change in unrealized gains/(losses) relating to instruments still held at the reporting date (19) 4 11
Total Derivative Instruments [Member]
      
Fair Value, Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Line Items]      
Balance, beginning of period 984 982 1,363
Total gains/(losses) (realized and unrealized):      
Included in earnings 50 157 (74)
Included in other comprehensive income         
Settlements (135) (155) (307)
Transfers in and/or out of level 3         
Balance, end of period 899 984 982
Change in unrealized gains/(losses) relating to instruments still held at the reporting date $ 95 $ 28 $ (391)