|
The following table summarizes fair value measurements by level at December 31, 2019, for assets and liabilities measured at fair value on a recurring basis ($ in millions):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level I |
|
Level II |
|
Level III |
|
Total |
Assets |
|
|
|
|
|
|
|
Cash and cash equivalents |
$ |
12,123 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
12,123 |
|
Investments available for sale: |
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities and obligations of U.S. government corporations and agencies |
$ |
73 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
73 |
|
Corporate securities |
— |
|
|
3,713 |
|
|
— |
|
|
3,713 |
|
Municipal securities |
— |
|
|
2,379 |
|
|
— |
|
|
2,379 |
|
Asset-backed securities |
— |
|
|
744 |
|
|
— |
|
|
744 |
|
Residential mortgage-backed securities |
— |
|
|
471 |
|
|
— |
|
|
471 |
|
Commercial mortgage-backed securities |
— |
|
|
388 |
|
|
— |
|
|
388 |
|
Total investments |
$ |
73 |
|
|
$ |
7,695 |
|
|
$ |
— |
|
|
$ |
7,768 |
|
Restricted deposits available for sale: |
|
|
|
|
|
|
|
|
|
|
|
Cash and cash equivalents |
$ |
8 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
8 |
|
Certificates of deposit |
— |
|
|
482 |
|
|
— |
|
|
482 |
|
Corporate securities |
— |
|
|
20 |
|
|
— |
|
|
20 |
|
Municipal securities |
— |
|
|
9 |
|
|
— |
|
|
9 |
|
U.S. Treasury securities and obligations of U.S. government corporations and agencies |
139 |
|
|
— |
|
|
— |
|
|
139 |
|
Total restricted deposits |
$ |
147 |
|
|
$ |
511 |
|
|
$ |
— |
|
|
$ |
658 |
|
Other long-term assets: |
|
|
|
|
|
|
|
Interest rate swap agreements |
$ |
— |
|
|
$ |
10 |
|
|
$ |
— |
|
|
$ |
10 |
|
Total other long-term assets |
$ |
— |
|
|
$ |
10 |
|
|
$ |
— |
|
|
$ |
10 |
|
|
|
|
|
|
|
|
|
Total assets at fair value |
$ |
12,343 |
|
|
$ |
8,216 |
|
|
$ |
— |
|
|
$ |
20,559 |
|
|
|
|
|
|
|
|
|
Liabilities |
|
|
|
|
|
|
|
Other long-term liabilities: |
|
|
|
|
|
|
|
Interest rate swap agreements |
$ |
— |
|
|
$ |
11 |
|
|
$ |
— |
|
|
$ |
11 |
|
Total liabilities at fair value |
$ |
— |
|
|
$ |
11 |
|
|
$ |
— |
|
|
$ |
11 |
|
The following table summarizes fair value measurements by level at December 31, 2018, for assets and liabilities measured at fair value on a recurring basis ($ in millions):
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Level I |
|
Level II |
|
Level III |
|
Total |
Assets |
|
|
|
|
|
|
|
Cash and cash equivalents |
$ |
5,342 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
5,342 |
|
Investments available for sale: |
|
|
|
|
|
|
|
|
|
|
|
U.S. Treasury securities and obligations of U.S. government corporations and agencies |
$ |
247 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
247 |
|
Corporate securities |
— |
|
|
3,146 |
|
|
— |
|
|
3,146 |
|
Municipal securities |
— |
|
|
2,187 |
|
|
— |
|
|
2,187 |
|
Asset-backed securities |
— |
|
|
683 |
|
|
— |
|
|
683 |
|
Residential mortgage-backed securities |
— |
|
|
444 |
|
|
— |
|
|
444 |
|
Commercial mortgage-backed securities |
— |
|
|
361 |
|
|
— |
|
|
361 |
|
Total investments |
$ |
247 |
|
|
$ |
6,821 |
|
|
$ |
— |
|
|
$ |
7,068 |
|
Restricted deposits available for sale: |
|
|
|
|
|
|
|
|
|
|
|
Cash and cash equivalents |
$ |
8 |
|
|
$ |
— |
|
|
$ |
— |
|
|
$ |
8 |
|
Certificates of deposit |
— |
|
|
433 |
|
|
— |
|
|
433 |
|
U.S. Treasury securities and obligations of U.S. government corporations and agencies |
114 |
|
|
— |
|
|
— |
|
|
114 |
|
Total restricted deposits |
$ |
122 |
|
|
$ |
433 |
|
|
$ |
— |
|
|
$ |
555 |
|
|
|
|
|
|
|
|
|
Total assets at fair value |
$ |
5,711 |
|
|
$ |
7,254 |
|
|
$ |
— |
|
|
$ |
12,965 |
|
|
|
|
|
|
|
|
|
Liabilities |
|
|
|
|
|
|
|
Other long-term liabilities: |
|
|
|
|
|
|
|
Interest rate swap agreements |
$ |
— |
|
|
$ |
95 |
|
|
$ |
— |
|
|
$ |
95 |
|
Total liabilities at fair value |
$ |
— |
|
|
$ |
95 |
|
|
$ |
— |
|
|
$ |
95 |
|
|