| Period | Value | YoY Chg | Change % | Date | Report | Filed |
|---|---|---|---|---|---|---|
| Q1 2023 | $35B | +$1.4B | +4.17% | Mar 31, 2023 | 10-Q | 2023-05-03 |
| Q4 2022 | $34.7B | +$1.24B | +3.72% | Dec 31, 2022 | 10-Q | 2023-05-03 |
| Q3 2022 | $33.6B | +$766M | +2.33% | Sep 30, 2022 | 10-Q | 2022-11-02 |
| Q2 2022 | $33.5B | +$856M | +2.62% | Jun 30, 2022 | 10-Q | 2022-08-03 |
| Q1 2022 | $33.6B | +$1.14B | +3.51% | Mar 31, 2022 | 10-Q | 2022-05-04 |
| Q4 2021 | $33.5B | +$1.22B | +3.79% | Dec 31, 2021 | 10-K | 2023-02-21 |
| Q3 2021 | $32.9B | +$695M | +2.16% | Sep 30, 2021 | 10-Q | 2021-11-04 |
| Q2 2021 | $32.6B | +$1.19B | +3.79% | Jun 30, 2021 | 10-Q | 2021-08-06 |
| Q1 2021 | $32.5B | +$1.55B | +5.01% | Mar 31, 2021 | 10-Q | 2021-05-05 |
| Q4 2020 | $32.3B | +$1.77B | +5.81% | Dec 31, 2020 | 10-K | 2022-02-22 |
| Q3 2020 | $32.2B | +$3.09B | +10.6% | Sep 30, 2020 | 10-Q | 2020-11-02 |
| Q2 2020 | $31.4B | +$3.34B | +11.9% | Jun 30, 2020 | 10-Q | 2020-08-04 |
| Q1 2020 | $30.9B | +$3.66B | +13.4% | Mar 31, 2020 | 10-Q | 2020-05-08 |
| Q4 2019 | $30.5B | +$3.91B | +14.7% | Dec 31, 2019 | 10-K | 2021-02-22 |
| Q3 2019 | $29.1B | +$3.69B | +14.5% | Sep 30, 2019 | 10-Q | 2019-10-29 |
| Q2 2019 | $28.1B | +$4.19B | +17.5% | Jun 30, 2019 | 10-Q | 2019-07-30 |
| Q1 2019 | $27.2B | +$4.01B | +17.2% | Mar 31, 2019 | 10-Q | 2019-04-30 |
| Q4 2018 | $26.6B | +$4.46B | +20.2% | Dec 31, 2018 | 10-K | 2020-02-20 |
| Q3 2018 | $25.4B | +$4.39B | +20.9% | Sep 30, 2018 | 10-Q | 2018-10-30 |
| Q2 2018 | $23.9B | +$4.06B | +20.5% | Jun 30, 2018 | 10-Q | 2018-08-02 |
| Q1 2018 | $23.2B | +$4.01B | +20.9% | Mar 31, 2018 | 10-Q | 2018-05-03 |
| Q4 2017 | $22.1B | +$3.32B | +17.6% | Dec 31, 2017 | 10-K | 2019-02-21 |
| Q3 2017 | $21B | +$2.5B | +13.5% | Sep 30, 2017 | 10-Q | 2017-11-02 |
| Q2 2017 | $19.8B | +$1.59B | +8.71% | Jun 30, 2017 | 10-Q | 2017-08-03 |
| Q1 2017 | $19.2B | +$940M | +5.14% | Mar 31, 2017 | 10-Q | 2017-05-04 |
| Q4 2016 | $18.8B | +$448M | +2.44% | Dec 31, 2016 | 10-K | 2018-02-21 |
| Q3 2016 | $18.5B | +$326M | +1.8% | Sep 30, 2016 | 10-Q | 2016-11-03 |
| Q2 2016 | $18.3B | +$281M | +1.56% | Jun 30, 2016 | 10-Q | 2016-08-05 |
| Q1 2016 | $18.3B | +$384M | +2.15% | Mar 31, 2016 | 10-Q | 2016-05-10 |
| Q4 2015 | $18.4B | +$71M | +0.39% | Dec 31, 2015 | 10-K | 2017-02-21 |
| Q3 2015 | $18.2B | +$320M | +1.79% | Sep 30, 2015 | 10-Q | 2015-11-05 |
| Q2 2015 | $18B | +$183M | +1.03% | Jun 30, 2015 | 10-Q | 2015-08-07 |
| Q1 2015 | $17.9B | +$132M | +0.74% | Mar 31, 2015 | 10-Q | 2015-05-07 |
| Q4 2014 | $18.3B | +$320M | +1.78% | Dec 31, 2014 | 10-K | 2016-02-25 |
| Q3 2014 | $17.8B | -$149M | -0.83% | Sep 30, 2014 | 10-Q | 2014-11-06 |
| Q2 2014 | $17.8B | -$93M | -0.52% | Jun 30, 2014 | 10-Q | 2014-08-06 |
| Q1 2014 | $17.8B | -$119M | -0.67% | Mar 31, 2014 | 10-Q | 2014-05-08 |
| Q4 2013 | $18B | +$67M | +0.37% | Dec 31, 2013 | 10-K | 2015-02-27 |
| Q3 2013 | $18B | +$163M | +0.91% | Sep 30, 2013 | 10-Q | 2013-11-05 |
| Q2 2013 | $17.9B | +$283M | +1.61% | Jun 30, 2013 | 10-Q | 2013-08-02 |
| Q1 2013 | $17.9B | +$274M | +1.56% | Mar 31, 2013 | 10-Q | 2013-05-03 |
| Q4 2012 | $17.9B | +$273M | +1.55% | Dec 31, 2012 | 10-K | 2014-02-28 |
| Q3 2012 | $17.8B | +$248M | +1.41% | Sep 30, 2012 | 10-Q | 2012-11-02 |
| Q2 2012 | $17.6B | +$108M | +0.62% | Jun 30, 2012 | 10-Q | 2012-08-03 |
| Q1 2012 | $17.6B | +$207M | +1.19% | Mar 31, 2012 | 10-Q | 2012-05-07 |
| Q4 2011 | $17.6B | +$234M | +1.35% | Dec 31, 2011 | 10-K | 2013-02-28 |
| Q3 2011 | $17.6B | +$110M | +0.63% | Sep 30, 2011 | 10-Q | 2011-11-04 |
| Q2 2011 | $17.5B | -$126M | -0.72% | Jun 30, 2011 | 10-Q | 2011-08-05 |
| Q1 2011 | $17.4B | -$351M | -1.98% | Mar 31, 2011 | 10-Q | 2011-05-05 |
| Q4 2010 | $17.4B | Dec 31, 2010 | 10-K | 2012-02-27 | ||
| Q3 2010 | $17.5B | Sep 30, 2010 | 10-Q | 2010-11-05 | ||
| Q2 2010 | $17.6B | Jun 30, 2010 | 10-Q | 2010-08-09 | ||
| Q1 2010 | $17.8B | Mar 31, 2010 | 10-Q | 2010-05-07 |