$ 3,713,156

$ 1,703,130

147

122

Cash, cash equivalents, short-term investments, and restricted cash, amortized cost

(59)

Restricted cash

141,024

75,805

4,734,908

3,996,980

Cash, cash equivalents, short-term investments, and restricted cash, estimated fair market value

4,735,055

3,997,043

U.S. government agency securities

829,791

134

829,925

1,037,577

Treasury bills

44,975

1,163,748

U.S. government agency securities

44,988

1,163,813

1,037,572

(52)

1,037,577

Municipal securities

5,962

16,226

(6)

5,962

16,220

Certificates of deposit

498

Cash and Cash Equivalents, at Carrying Value [Abstract]

498

Cash

Cash and Cash Equivalents, at Carrying Value [Abstract]

218,514

213,518

Money market funds

Cash and Cash Equivalents, at Carrying Value [Abstract]

$ 3,494,642

1,486,384

Municipal securities

Cash and cash equivalents, at cost

3,229

Cash and cash equivalents, gross unrealized losses

(1)

$ 3,228

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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